fix(db): monte db/init fichier par fichier et coupe la telemetrie

Monter le dossier ./db/init sur /docker-entrypoint-initdb.d remplacait le
dossier de l'image au lieu de s'y ajouter. Les trois scripts d'init livres
par timescaledb-ha disparaissaient sans aucun message : creation de
l'extension dans template1, reglage par timescaledb-tune, et installation de
timescaledb_toolkit. Verifie au demarrage : le dossier ne contenait que nos
deux fichiers, et timescaledb_toolkit etait absent des bases.

Monter chaque fichier separement retablit l'ordre attendu, verifie dans les
journaux : 000, 001, 010, puis 100 et 110.

TIMESCALEDB_TELEMETRY passe a off par defaut : l'image envoie sinon des
statistiques d'usage a Timescale, ce qui ne va pas pour un deploiement
on-premise.

.env.example

@@ -0,0 +1,17 @@
+# Variables lues par docker-compose.yml a la racine.
+# Le backend lance hors conteneur (`make dev`) lit apps/backend/.env, pas ce fichier.
+
+POSTGRES_USER=enervision
+POSTGRES_PASSWORD=change_me
+POSTGRES_DB=enervision
+# 5432 est souvent deja pris par une autre base du poste.
+POSTGRES_PORT=5433
+# `basic` renvoie des statistiques d'usage a Timescale.
+TIMESCALEDB_TELEMETRY=off
+
+APP_ENV=local
+APP_DEBUG=true
+APP_LOG_LEVEL=INFO
+APP_SECRET_KEY=change_me
+APP_CORS_ORIGINS=http://localhost:4200
+BACKEND_PORT=8000

Makefile

@@ -1,7 +1,8 @@
 BACKEND := apps/backend
 
 .DEFAULT_GOAL := help
-.PHONY: help install dev lint format typecheck test check docker-build
+.PHONY: help install dev lint format typecheck test test-integration check docker-build \
+        db-up db-down db-reset db-logs db-psql migrate
 
 help: ## Liste les cibles disponibles
 	@grep -E '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) | awk 'BEGIN {FS = ":.*?## "}; {printf "  \033[36m%-16s\033[0m %s\n", $$1, $$2}'
@@ -21,10 +22,31 @@ format: ## Formate et corrige le backend
 typecheck: ## Verifie le typage du backend
 	cd $(BACKEND) && uv run mypy app
 
-test: ## Execute les tests backend
+test: ## Execute les tests backend ne demandant pas de base
 	cd $(BACKEND) && uv run pytest
 
+test-integration: ## Execute les tests exigeant une base joignable
+	cd $(BACKEND) && uv run pytest -m integration
+
 check: lint typecheck test ## Chaine de verification complete
 
 docker-build: ## Construit l'image du backend
 	docker build -t enervision-backend:local $(BACKEND)
+
+db-up: ## Demarre la base PostgreSQL TimescaleDB
+	docker compose up -d db
+
+db-down: ## Arrete la base en conservant ses donnees
+	docker compose stop db
+
+db-reset: ## Detruit la base et rejoue db/init
+	docker compose down -v && docker compose up -d db
+
+db-logs: ## Suit les journaux de la base
+	docker compose logs -f db
+
+db-psql: ## Ouvre une session psql sur la base applicative
+	docker compose exec db psql -U $${POSTGRES_USER:-enervision} -d $${POSTGRES_DB:-enervision}
+
+migrate: ## Applique les migrations Alembic
+	cd $(BACKEND) && uv run alembic upgrade head

README.md

@@ -9,14 +9,14 @@ series temporelles energetiques, deployee sur une machine on-premise.
 |------------|-------------------------------------|---------------------|---------------|
 | Backend    | FastAPI, Python 3.14                | `apps/backend`      | Initialise    |
 | Frontend   | Angular, Node 24 LTS                | `apps/frontend`     | A initialiser |
-| Base       | PostgreSQL + TimescaleDB            | `db`                | A initialiser |
+| Base       | PostgreSQL 17 + TimescaleDB         | `db`                | Initialise    |
 | ETL        | Apache Airflow                      | `etl/airflow`       | A initialiser |
 | Infra      | Terraform                           | `infra/terraform`   | A initialiser |
 | CI/CD      | GitHub Actions                      | `.github/workflows` | A initialiser |
 | Monitoring | Prometheus, Grafana, Alertmanager   | `monitoring`        | A initialiser |
 
-Seul le backend est initialise a ce stade. Les autres dossiers portent l'arborescence et
+Le backend et la base sont initialises a ce stade. Les autres dossiers portent
-un README de cadrage, leur contenu fait l'objet d'un ticket dedie.
+l'arborescence et un README de cadrage, leur contenu fait l'objet d'un ticket dedie.
 
 ## Arborescence
 
@@ -50,13 +50,33 @@ un README de cadrage, leur contenu fait l'objet d'un ticket dedie.
 Prerequis : uv, Docker. Le poste doit disposer de Python 3.14, que `uv` installe seul.
 
 ```bash
+cp .env.example .env                               # variables de docker-compose
+cp apps/backend/.env.example apps/backend/.env     # variables du backend hors conteneur
+
+make db-up     # PostgreSQL + TimescaleDB, publie sur le port 5433
 make install   # dependances du backend
+make migrate   # applique les migrations Alembic
 make dev       # API sur http://localhost:8000, docs sur /docs
 make check     # lint + typage + tests
 ```
 
 `make help` liste les cibles disponibles.
 
+Deux fichiers d'environnement, deux usages : `.env` a la racine alimente `docker-compose.yml`,
+`apps/backend/.env` alimente le backend lance sur le poste. Le port 5433 est publie plutot que
+5432, souvent deja pris par une autre base.
+
+La boucle de developpement est `make db-up` puis `make dev` : seule la base tourne en
+conteneur. Le service `backend` du `docker-compose.yml` sert la stack complete et la recette,
+et n'embarque pas le source, donc toute modification y demande un
+`docker compose up -d --build backend`.
+
+Verifier que la base repond et que l'extension est chargee :
+
+```bash
+curl -s localhost:8000/api/v1/health/ready
+```
+
 ## Conventions
 
 - Branches : `feat/`, `fix/`, `chore/`, `docs/` suivi d'un libelle court.

apps/backend/.env.example

@@ -3,4 +3,4 @@ APP_DEBUG=true
 APP_LOG_LEVEL=INFO
 APP_SECRET_KEY=change_me
 APP_CORS_ORIGINS=http://localhost:4200
-DATABASE_URL=postgresql+asyncpg://enervision:change_me@localhost:5432/enervision
+DATABASE_URL=postgresql+asyncpg://enervision:change_me@localhost:5433/enervision

apps/backend/README.md

@@ -22,6 +22,9 @@ uv sync --all-groups
 `APP_SECRET_KEY` et `DATABASE_URL` n'ont pas de valeur par defaut : l'application refuse
 de demarrer sans elles.
 
+`DATABASE_URL` pointe sur `localhost:5433`, le port publie par le service `db` du
+`docker-compose.yml` racine. Demarrer la base depuis la racine avec `make db-up`.
+
 ## Commandes
 
 Depuis la racine du monorepo, via le `Makefile` : `make install`, `make dev`, `make lint`,
@@ -35,8 +38,13 @@ uv run ruff check .          # lint
 uv run ruff format .         # format
 uv run mypy app              # typage strict
 uv run pytest                # tests + couverture
+uv run pytest -m integration # tests exigeant une base joignable
 ```
 
+`pytest` ecarte par defaut les tests marques `integration`, pour que `make check` reste
+jouable sans Docker. Ces tests visent la base `enervision_test`, creee par
+`db/init/110-test-database.sql` au premier demarrage du conteneur.
+
 L'application est exposee par une factory (`create_app`) et non par un objet module :
 aucune configuration n'est lue a l'import, ce qui rend les tests et les migrations
 independants de l'environnement.
@@ -73,7 +81,7 @@ Le sens de dependance est unique : `endpoints` vers `services` vers `repositorie
 | Route                  | Role                                            |
 |------------------------|-------------------------------------------------|
 | `/api/v1/health/live`  | Sonde de vivacite, aucune dependance externe    |
-| `/api/v1/health/ready` | Sonde de disponibilite, verifie la base         |
+| `/api/v1/health/ready` | Sonde de disponibilite, verifie la base et TimescaleDB |
 | `/metrics`             | Metriques au format Prometheus                  |
 | `/docs`, `/openapi.json` | Documentation, desactivee quand `APP_ENV=prod` |
 
@@ -86,6 +94,10 @@ uv run alembic upgrade head
 
 L'URL de connexion vient de `DATABASE_URL`, pas de `alembic.ini`.
 
+La premiere revision ne cree aucune table : elle refuse de s'appliquer si l'extension
+TimescaleDB manque, ce qui arrive quand `db/init` n'a pas ete joue. Le DDL propre a
+TimescaleDB qui ne depend pas du schema applicatif vit dans `db/`, pas ici.
+
 ## Image Docker
 
 Build multi-stage, dependances resolues par uv depuis `uv.lock`, execution sous un

apps/backend/alembic/versions/5353c0e4f094_socle_garde_extension_timescaledb.py

@@ -0,0 +1,37 @@
+"""socle garde extension timescaledb
+
+Revision ID: 5353c0e4f094
+Revises:
+Create Date: 2026-09-14 14:17:17.556764
+
+Premiere revision du schema applicatif. Elle ne cree aucune table : elle etablit
+alembic_version et refuse de s'appliquer sur une base ou l'extension TimescaleDB
+manque, cas qui se produit quand db/init n'a pas ete joue.
+"""
+
+from collections.abc import Sequence
+
+from alembic import op
+
+revision: str = "5353c0e4f094"
+down_revision: str | Sequence[str] | None = None
+branch_labels: str | Sequence[str] | None = None
+depends_on: str | Sequence[str] | None = None
+
+GARDE_EXTENSION = """
+DO $$
+BEGIN
+    IF NOT EXISTS (SELECT 1 FROM pg_extension WHERE extname = 'timescaledb') THEN
+        RAISE EXCEPTION 'extension timescaledb absente, voir db/init et db/README.md';
+    END IF;
+END
+$$;
+"""
+
+
+def upgrade() -> None:
+    op.execute(GARDE_EXTENSION)
+
+
+def downgrade() -> None:
+    pass

apps/backend/app/api/v1/endpoints/health.py

@@ -9,6 +9,8 @@ from app.schemas.health import LivenessStatus, ReadinessStatus
 logger = get_logger(__name__)
 router = APIRouter(tags=["health"])
 
+TIMESCALEDB_VERSION = text("SELECT extversion FROM pg_extension WHERE extname = 'timescaledb'")
+
 
 @router.get("/live", summary="Sonde de vivacite")
 async def liveness(settings: SettingsDep) -> LivenessStatus:
@@ -23,11 +25,19 @@ async def liveness(settings: SettingsDep) -> LivenessStatus:
 @router.get("/ready", summary="Sonde de disponibilite")
 async def readiness(session: SessionDep) -> ReadinessStatus:
     try:
-        await session.execute(text("SELECT 1"))
+        version: str | None = await session.scalar(TIMESCALEDB_VERSION)
     except SQLAlchemyError, OSError:
         logger.exception("Base de donnees injoignable")
         raise HTTPException(
             status_code=status.HTTP_503_SERVICE_UNAVAILABLE,
             detail="Base de donnees injoignable",
         ) from None
-    return ReadinessStatus(status="ready", database="reachable")
+
+    if version is None:
+        logger.error("Extension TimescaleDB absente de la base")
+        raise HTTPException(
+            status_code=status.HTTP_503_SERVICE_UNAVAILABLE,
+            detail="Extension TimescaleDB absente",
+        )
+
+    return ReadinessStatus(status="ready", database="reachable", timescaledb=version)

apps/backend/app/schemas/health.py

@@ -13,3 +13,4 @@ class LivenessStatus(BaseModel):
 class ReadinessStatus(BaseModel):
     status: Literal["ready"]
     database: Literal["reachable"]
+    timescaledb: str

apps/backend/pyproject.toml

@@ -79,7 +79,8 @@ disallow_untyped_defs = false
 [tool.pytest.ini_options]
 testpaths = ["tests"]
 asyncio_mode = "auto"
-addopts = "-q --strict-markers --cov=app --cov-report=term-missing"
+addopts = "-q --strict-markers -m 'not integration' --cov=app --cov-report=term-missing"
+markers = ["integration: requiert une base PostgreSQL joignable, hors `make test`"]
 
 [tool.coverage.run]
 source = ["app"]

apps/backend/tests/api/test_health.py

@@ -20,6 +20,44 @@ async def test_liveness_exposes_service_metadata(client: AsyncClient) -> None:
     }
 
 
+async def test_readiness_reports_the_timescaledb_version(app: FastAPI, client: AsyncClient) -> None:
+    class ReadySession:
+        async def scalar(self, *_: object, **__: object) -> str:
+            return "2.22.1"
+
+    async def override() -> AsyncIterator[ReadySession]:
+        yield ReadySession()
+
+    app.dependency_overrides[get_session] = override
+
+    response = await client.get("/api/v1/health/ready")
+
+    assert response.status_code == 200
+    assert response.json() == {
+        "status": "ready",
+        "database": "reachable",
+        "timescaledb": "2.22.1",
+    }
+
+
+async def test_readiness_returns_503_when_the_extension_is_missing(
+    app: FastAPI, client: AsyncClient
+) -> None:
+    class SessionWithoutExtension:
+        async def scalar(self, *_: object, **__: object) -> None:
+            return None
+
+    async def override() -> AsyncIterator[SessionWithoutExtension]:
+        yield SessionWithoutExtension()
+
+    app.dependency_overrides[get_session] = override
+
+    response = await client.get("/api/v1/health/ready")
+
+    assert response.status_code == 503
+    assert response.json()["detail"] == "Extension TimescaleDB absente"
+
+
 @pytest.mark.parametrize(
     "failure",
     [
@@ -32,7 +70,7 @@ async def test_readiness_returns_503_when_database_is_unreachable(
     app: FastAPI, client: AsyncClient, failure: Exception
 ) -> None:
     class UnreachableSession:
-        async def execute(self, *_: object, **__: object) -> None:
+        async def scalar(self, *_: object, **__: object) -> None:
             raise failure
 
     async def override() -> AsyncIterator[UnreachableSession]:
@@ -49,3 +87,14 @@ async def test_readiness_returns_503_when_database_is_unreachable(
 @pytest.mark.parametrize("path", ["/openapi.json", "/metrics"])
 async def test_technical_endpoints_are_served(client: AsyncClient, path: str) -> None:
     assert (await client.get(path)).status_code == 200
+
+
+@pytest.mark.integration
+async def test_readiness_reaches_the_real_database(client: AsyncClient) -> None:
+    response = await client.get("/api/v1/health/ready")
+
+    assert response.status_code == 200, response.text
+    body = response.json()
+    assert body["status"] == "ready"
+    assert body["database"] == "reachable"
+    assert body["timescaledb"]

apps/backend/tests/conftest.py

@@ -6,6 +6,7 @@ from fastapi import FastAPI
 from httpx import ASGITransport, AsyncClient
 
 from app.core.config import get_settings
+from app.db.session import get_engine, get_session_factory
 from app.main import create_app
 
 
@@ -13,13 +14,24 @@ from app.main import create_app
 def environment() -> Iterator[None]:
     os.environ.setdefault("APP_SECRET_KEY", "secret-de-test")
     os.environ.setdefault(
-        "DATABASE_URL", "postgresql+asyncpg://enervision:enervision@localhost:5432/enervision_test"
+        "DATABASE_URL", "postgresql+asyncpg://enervision:change_me@localhost:5433/enervision_test"
     )
     get_settings.cache_clear()
     yield
     get_settings.cache_clear()
 
 
+# Piege : get_engine est lru_cache et pytest-asyncio ouvre une boucle par test. Sans ce
+# recyclage, le 2e test touchant vraiment la base heriterait d une boucle morte.
+@pytest.fixture(autouse=True)
+async def engine_per_test() -> AsyncIterator[None]:
+    yield
+    if get_engine.cache_info().currsize:
+        await get_engine().dispose()
+    get_engine.cache_clear()
+    get_session_factory.cache_clear()
+
+
 @pytest.fixture
 def app() -> FastAPI:
     return create_app()

apps/frontend/.editorconfig

@@ -1,17 +0,0 @@
-# Editor configuration, see https://editorconfig.org
-root = true
-
-[*]
-charset = utf-8
-indent_style = space
-indent_size = 2
-insert_final_newline = true
-trim_trailing_whitespace = true
-
-[*.ts]
-quote_type = single
-ij_typescript_use_double_quotes = false
-
-[*.md]
-max_line_length = off
-trim_trailing_whitespace = false

apps/frontend/.gitignore

@@ -1,44 +0,0 @@
-# See https://docs.github.com/get-started/getting-started-with-git/ignoring-files for more about ignoring files.
-
-# Compiled output
-/dist
-/tmp
-/out-tsc
-/bazel-out
-
-# Node
-/node_modules
-npm-debug.log
-yarn-error.log
-
-# IDEs and editors
-.idea/
-.project
-.classpath
-.c9/
-*.launch
-.settings/
-*.sublime-workspace
-
-# Visual Studio Code
-.vscode/*
-!.vscode/settings.json
-!.vscode/tasks.json
-!.vscode/launch.json
-!.vscode/extensions.json
-!.vscode/mcp.json
-.history/*
-
-# Miscellaneous
-/.angular/cache
-.sass-cache/
-/connect.lock
-/coverage
-/libpeerconnection.log
-testem.log
-/typings
-__screenshots__/
-
-# System files
-.DS_Store
-Thumbs.db

apps/frontend/.prettierrc

@@ -1,12 +0,0 @@
-{
-  "printWidth": 100,
-  "singleQuote": true,
-  "overrides": [
-    {
-      "files": "*.html",
-      "options": {
-        "parser": "angular"
-      }
-    }
-  ]
-}

apps/frontend/README.md

@@ -1,62 +1,10 @@
 # Frontend EnerVision
 
-This project was generated using [Angular CLI](https://github.com/angular/angular-cli) version 22.1.8.
+Le squelette applicatif n'est pas versionne a la main : il est genere par Angular CLI.
 
-## Development server
+## Initialisation
 
-To start a local development server, run:
+Depuis `apps/` :
-
-```bash
-ng serve
-```
-
-Once the server is running, open your browser and navigate to `http://localhost:4200/`. The application will automatically reload whenever you modify any of the source files.
-
-## Code scaffolding
-
-Angular CLI includes powerful code scaffolding tools. To generate a new component, run:
-
-```bash
-ng generate component component-name
-```
-
-For a complete list of available schematics (such as `components`, `directives`, or `pipes`), run:
-
-```bash
-ng generate --help
-```
-
-## Building
-
-To build the project run:
-
-```bash
-ng build
-```
-
-This will compile your project and store the build artifacts in the `dist/` directory. By default, the production build optimizes your application for performance and speed.
-
-## Running unit tests
-
-To execute unit tests with the [Vitest](https://vitest.dev/) test runner, use the following command:
-
-```bash
-ng test
-```
-
-## Running end-to-end tests
-
-For end-to-end (e2e) testing, run:
-
-```bash
-ng e2e
-```
-
-Angular CLI does not come with an end-to-end testing framework by default. You can choose one that suits your needs.
-
-## Configuration spécifique au projet EnerVision
-
-Le squelette applicatif n'est pas versionné à la main : il a été généré par Angular CLI avec la commande suivante, depuis `apps/` :
 
 ```bash
 npx --yes @angular/cli@latest new frontend \
@@ -68,13 +16,11 @@ npx --yes @angular/cli@latest new frontend \
   --skip-git
 ```
 
-Points à vérifier après toute regénération :
+Le dossier `apps/frontend` doit etre vide (hors ce README) avant de lancer la commande.
+
+## Apres generation
 
 1. Pointer l'API dans `src/environments/` sur `http://localhost:8000/api/v1`.
-2. Ajouter le proxy de développement (`proxy.conf.json`) vers le backend.
+2. Ajouter le proxy de developpement (`proxy.conf.json`) vers le backend.
-3. Vérifier que `npm start` sert bien sur le port 4200 attendu par `docker-compose.yml`.
+3. Verifier que `npm start` sert bien sur le port 4200 attendu par `docker-compose.yml`.
 4. Ajouter le `Dockerfile` multi-stage (build Angular puis service statique nginx).
-
-## Additional Resources
-
-For more information on using the Angular CLI, including detailed command references, visit the [Angular CLI Overview and Command Reference](https://angular.dev/tools/cli) page.

apps/frontend/angular.json

@@ -1,85 +0,0 @@
-{
-  "$schema": "./node_modules/@angular/cli/lib/config/schema.json",
-  "version": 1,
-  "cli": {
-    "packageManager": "npm"
-  },
-  "newProjectRoot": "projects",
-  "projects": {
-    "frontend": {
-      "projectType": "application",
-      "schematics": {
-        "@schematics/angular:component": {
-          "style": "scss"
-        }
-      },
-      "root": "",
-      "sourceRoot": "src",
-      "prefix": "app",
-      "architect": {
-        "build": {
-          "builder": "@angular/build:application",
-          "options": {
-            "browser": "src/main.ts",
-            "tsConfig": "tsconfig.app.json",
-            "inlineStyleLanguage": "scss",
-            "assets": [
-              {
-                "glob": "**/*",
-                "input": "public"
-              }
-            ],
-            "styles": ["src/styles.scss"]
-          },
-          "configurations": {
-            "production": {
-              "budgets": [
-                {
-                  "type": "initial",
-                  "maximumWarning": "500kB",
-                  "maximumError": "1MB"
-                },
-                {
-                  "type": "anyComponentStyle",
-                  "maximumWarning": "4kB",
-                  "maximumError": "8kB"
-                }
-              ],
-              "outputHashing": "all"
-            },
-            "development": {
-              "optimization": false,
-              "extractLicenses": false,
-              "sourceMap": true,
-              "fileReplacements": [
-                {
-                  "replace": "src/environments/environment.ts",
-                  "with": "src/environments/environment.development.ts"
-                }
-              ]
-            }
-          },
-          "defaultConfiguration": "production"
-        },
-        "serve": {
-          "builder": "@angular/build:dev-server",
-          "options": {
-            "proxyConfig": "proxy.conf.json"
-          },
-          "configurations": {
-            "production": {
-              "buildTarget": "frontend:build:production"
-            },
-            "development": {
-              "buildTarget": "frontend:build:development"
-            }
-          },
-          "defaultConfiguration": "development"
-        },
-        "test": {
-          "builder": "@angular/build:unit-test"
-        }
-      }
-    }
-  }
-}

apps/frontend/package.json

@@ -1,32 +0,0 @@
-{
-  "name": "frontend",
-  "version": "0.0.0",
-  "scripts": {
-    "ng": "ng",
-    "start": "ng serve",
-    "build": "ng build",
-    "watch": "ng build --watch --configuration development",
-    "test": "ng test"
-  },
-  "private": true,
-  "packageManager": "npm@11.19.0",
-  "dependencies": {
-    "@angular/common": "^22.1.0",
-    "@angular/compiler": "^22.1.0",
-    "@angular/core": "^22.1.0",
-    "@angular/forms": "^22.1.0",
-    "@angular/platform-browser": "^22.1.0",
-    "@angular/router": "^22.1.0",
-    "rxjs": "~7.8.0",
-    "tslib": "^2.3.0"
-  },
-  "devDependencies": {
-    "@angular/build": "^22.1.8",
-    "@angular/cli": "^22.1.8",
-    "@angular/compiler-cli": "^22.1.0",
-    "jsdom": "^28.0.0",
-    "prettier": "^3.8.1",
-    "typescript": "~6.0.2",
-    "vitest": "^4.0.8"
-  }
-}

apps/frontend/proxy.conf.json

@@ -1,8 +0,0 @@
-{
-  "/api": {
-    "target": "http://localhost:8000",
-    "secure": false,
-    "changeOrigin": true,
-    "logLevel": "debug"
-  }
-}

apps/frontend/src/app/app.config.ts

@@ -1,7 +0,0 @@
-import { ApplicationConfig, provideBrowserGlobalErrorListeners } from '@angular/core';
-import { provideRouter } from '@angular/router';
-import { routes } from './app.routes';
-
-export const appConfig: ApplicationConfig = {
-  providers: [provideBrowserGlobalErrorListeners(), provideRouter(routes)],
-};

apps/frontend/src/app/app.html

@@ -1,353 +0,0 @@
-<!-- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * -->
-<!-- * * * * * * * * * * * The content below * * * * * * * * * * * -->
-<!-- * * * * * * * * * * is only a placeholder * * * * * * * * * * -->
-<!-- * * * * * * * * * * and can be replaced.  * * * * * * * * * * -->
-<!-- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * -->
-<!-- * * * * * * * * * Delete the template below * * * * * * * * * -->
-<!-- * * * * * * * to get started with your project! * * * * * * * -->
-<!-- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * -->
-
-<style>
-  :host {
-    --bright-blue: oklch(51.01% 0.274 263.83);
-    --electric-violet: oklch(53.18% 0.28 296.97);
-    --french-violet: oklch(47.66% 0.246 305.88);
-    --vivid-pink: oklch(69.02% 0.277 332.77);
-    --hot-red: oklch(61.42% 0.238 15.34);
-    --orange-red: oklch(63.32% 0.24 31.68);
-
-    --gray-900: oklch(19.37% 0.006 300.98);
-    --gray-700: oklch(36.98% 0.014 302.71);
-    --gray-400: oklch(70.9% 0.015 304.04);
-
-    --red-to-pink-to-purple-vertical-gradient: linear-gradient(
-      180deg,
-      var(--orange-red) 0%,
-      var(--vivid-pink) 50%,
-      var(--electric-violet) 100%
-    );
-
-    --red-to-pink-to-purple-horizontal-gradient: linear-gradient(
-      90deg,
-      var(--orange-red) 0%,
-      var(--vivid-pink) 50%,
-      var(--electric-violet) 100%
-    );
-
-    --pill-accent: var(--bright-blue);
-
-    font-family:
-      'Inter',
-      -apple-system,
-      BlinkMacSystemFont,
-      'Segoe UI',
-      Roboto,
-      Helvetica,
-      Arial,
-      sans-serif,
-      'Apple Color Emoji',
-      'Segoe UI Emoji',
-      'Segoe UI Symbol';
-    box-sizing: border-box;
-    -webkit-font-smoothing: antialiased;
-    -moz-osx-font-smoothing: grayscale;
-    display: block;
-    height: 100dvh;
-  }
-
-  h1 {
-    font-size: 3.125rem;
-    color: var(--gray-900);
-    font-weight: 500;
-    line-height: 100%;
-    letter-spacing: -0.125rem;
-    margin: 0;
-    font-family:
-      'Inter Tight',
-      -apple-system,
-      BlinkMacSystemFont,
-      'Segoe UI',
-      Roboto,
-      Helvetica,
-      Arial,
-      sans-serif,
-      'Apple Color Emoji',
-      'Segoe UI Emoji',
-      'Segoe UI Symbol';
-  }
-
-  p {
-    margin: 0;
-    color: var(--gray-700);
-  }
-
-  main {
-    width: 100%;
-    min-height: 100%;
-    display: flex;
-    justify-content: center;
-    align-items: center;
-    padding: 1rem;
-    box-sizing: inherit;
-    position: relative;
-  }
-
-  .angular-logo {
-    max-width: 9.2rem;
-  }
-
-  .content {
-    display: flex;
-    justify-content: space-around;
-    width: 100%;
-    max-width: 700px;
-    margin-bottom: 3rem;
-  }
-
-  .content h1 {
-    margin-top: 1.75rem;
-  }
-
-  .content p {
-    margin-top: 1.5rem;
-  }
-
-  .divider {
-    width: 1px;
-    background: var(--red-to-pink-to-purple-vertical-gradient);
-    margin-inline: 0.5rem;
-  }
-
-  .pill-group {
-    display: flex;
-    flex-direction: column;
-    align-items: start;
-    flex-wrap: wrap;
-    gap: 1.25rem;
-  }
-
-  .pill {
-    display: flex;
-    align-items: center;
-    --pill-accent: var(--bright-blue);
-    background: color-mix(in srgb, var(--pill-accent) 5%, transparent);
-    color: var(--pill-accent);
-    padding-inline: 0.75rem;
-    padding-block: 0.375rem;
-    border-radius: 2.75rem;
-    border: 0;
-    transition: background 0.3s ease;
-    font-family: var(--inter-font);
-    font-size: 0.875rem;
-    font-style: normal;
-    font-weight: 500;
-    line-height: 1.4rem;
-    letter-spacing: -0.00875rem;
-    text-decoration: none;
-    white-space: nowrap;
-  }
-
-  .pill:hover {
-    background: color-mix(in srgb, var(--pill-accent) 15%, transparent);
-  }
-
-  .pill-group .pill:nth-child(6n + 1) {
-    --pill-accent: var(--bright-blue);
-  }
-  .pill-group .pill:nth-child(6n + 2) {
-    --pill-accent: var(--electric-violet);
-  }
-  .pill-group .pill:nth-child(6n + 3) {
-    --pill-accent: var(--french-violet);
-  }
-
-  .pill-group .pill:nth-child(6n + 4),
-  .pill-group .pill:nth-child(6n + 5),
-  .pill-group .pill:nth-child(6n + 6) {
-    --pill-accent: var(--hot-red);
-  }
-
-  .pill-group svg {
-    margin-inline-start: 0.25rem;
-  }
-
-  .social-links {
-    display: flex;
-    align-items: center;
-    gap: 0.73rem;
-    margin-top: 1.5rem;
-  }
-
-  .social-links path {
-    transition: fill 0.3s ease;
-    fill: var(--gray-400);
-  }
-
-  .social-links a:hover svg path {
-    fill: var(--gray-900);
-  }
-
-  @media screen and (max-width: 650px) {
-    .content {
-      flex-direction: column;
-      width: max-content;
-    }
-
-    .divider {
-      height: 1px;
-      width: 100%;
-      background: var(--red-to-pink-to-purple-horizontal-gradient);
-      margin-block: 1.5rem;
-    }
-  }
-</style>
-
-<main class="main">
-  <div class="content">
-    <div class="left-side">
-      <svg
-        xmlns="http://www.w3.org/2000/svg"
-        viewBox="0 0 982 239"
-        fill="none"
-        class="angular-logo"
-      >
-        <g clip-path="url(#a)">
-          <path
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-          />
-        </g>
-        <defs>
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-          >
-            <stop stop-color="#FF41F8" />
-            <stop offset=".707" stop-color="#FF41F8" stop-opacity=".5" />
-            <stop offset="1" stop-color="#FF41F8" stop-opacity="0" />
-          </radialGradient>
-          <linearGradient id="b" x1="0" x2="982" y1="192" y2="192" gradientUnits="userSpaceOnUse">
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-            <stop offset="0" stop-color="#F0070C" />
-            <stop offset=".526" stop-color="#CC26D5" />
-            <stop offset="1" stop-color="#7702FF" />
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-          <clipPath id="a"><path fill="#fff" d="M0 0h982v239H0z" /></clipPath>
-        </defs>
-      </svg>
-      <h1>Hello, {{ title() }}</h1>
-      <p>Congratulations! Your app is running. 🎉</p>
-    </div>
-    <div class="divider" role="separator" aria-label="Divider"></div>
-    <div class="right-side">
-      <div class="pill-group">
-        @for (
-          item of [
-            { title: 'Explore the Docs', link: 'https://angular.dev' },
-            { title: 'Learn with Tutorials', link: 'https://angular.dev/tutorials' },
-            {
-              title: 'Prompt and best practices for AI',
-              link: 'https://angular.dev/ai/develop-with-ai',
-            },
-            { title: 'CLI Docs', link: 'https://angular.dev/tools/cli' },
-            {
-              title: 'Angular Language Service',
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-            },
-            { title: 'Angular DevTools', link: 'https://angular.dev/tools/devtools' },
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-</main>
-
-<!-- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * -->
-<!-- * * * * * * * * * * * The content above * * * * * * * * * * * * -->
-<!-- * * * * * * * * * * is only a placeholder * * * * * * * * * * * -->
-<!-- * * * * * * * * * * and can be replaced.  * * * * * * * * * * * -->
-<!-- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * -->
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-<!-- * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * -->
-
-<router-outlet />

apps/frontend/src/app/app.routes.ts

@@ -1,3 +0,0 @@
-import { Routes } from '@angular/router';
-
-export const routes: Routes = [];

apps/frontend/src/app/app.spec.ts

@@ -1,23 +0,0 @@
-import { TestBed } from '@angular/core/testing';
-import { App } from './app';
-
-describe('App', () => {
-  beforeEach(async () => {
-    await TestBed.configureTestingModule({
-      imports: [App],
-    }).compileComponents();
-  });
-
-  it('should create the app', () => {
-    const fixture = TestBed.createComponent(App);
-    const app = fixture.componentInstance;
-    expect(app).toBeTruthy();
-  });
-
-  it('should render title', async () => {
-    const fixture = TestBed.createComponent(App);
-    await fixture.whenStable();
-    const compiled = fixture.nativeElement as HTMLElement;
-    expect(compiled.querySelector('h1')?.textContent).toContain('Hello, frontend');
-  });
-});

apps/frontend/src/app/app.ts

@@ -1,12 +0,0 @@
-import { Component, signal } from '@angular/core';
-import { RouterOutlet } from '@angular/router';
-
-@Component({
-  imports: [RouterOutlet],
-  selector: 'app-root',
-  styleUrl: './app.scss',
-  templateUrl: './app.html',
-})
-export class App {
-  protected readonly title = signal('frontend');
-}

apps/frontend/src/environments/environment.development.ts

@@ -1,4 +0,0 @@
-export const environment = {
-  production: false,
-  apiUrl: '/api/v1'
-};

apps/frontend/src/environments/environment.ts

@@ -1,4 +0,0 @@
-export const environment = {
-  production: true,
-  apiUrl: 'http://localhost:8000/api/v1'
-};

apps/frontend/src/index.html

@@ -1,13 +0,0 @@
-<!doctype html>
-<html lang="en">
-  <head>
-    <meta charset="utf-8" />
-    <title>Frontend</title>
-    <base href="/" />
-    <meta name="viewport" content="width=device-width, initial-scale=1" />
-    <link rel="icon" type="image/x-icon" href="favicon.ico" />
-  </head>
-  <body>
-    <app-root></app-root>
-  </body>
-</html>

apps/frontend/src/main.ts

@@ -1,5 +0,0 @@
-import { bootstrapApplication } from '@angular/platform-browser';
-import { appConfig } from './app/app.config';
-import { App } from './app/app';
-
-bootstrapApplication(App, appConfig).catch((err) => console.error(err));

apps/frontend/src/styles.scss

@@ -1 +0,0 @@
-/* You can add global styles to this file, and also import other style files */

apps/frontend/tsconfig.app.json

@@ -1,10 +0,0 @@
-/* To learn more about Typescript configuration file: https://www.typescriptlang.org/docs/handbook/tsconfig-json.html. */
-/* To learn more about Angular compiler options: https://angular.dev/reference/configs/angular-compiler-options. */
-{
-  "extends": "./tsconfig.json",
-  "compilerOptions": {
-    "types": []
-  },
-  "include": ["src/**/*.ts"],
-  "exclude": ["src/**/*.spec.ts"]
-}

apps/frontend/tsconfig.json

@@ -1,31 +0,0 @@
-/* To learn more about Typescript configuration file: https://www.typescriptlang.org/docs/handbook/tsconfig-json.html. */
-/* To learn more about Angular compiler options: https://angular.dev/reference/configs/angular-compiler-options. */
-{
-  "compileOnSave": false,
-  "compilerOptions": {
-    "noImplicitOverride": true,
-    "noPropertyAccessFromIndexSignature": true,
-    "noImplicitReturns": true,
-    "noFallthroughCasesInSwitch": true,
-    "skipLibCheck": true,
-    "isolatedModules": true,
-    "experimentalDecorators": true,
-    "importHelpers": true,
-    "target": "ES2022",
-    "module": "preserve"
-  },
-  "angularCompilerOptions": {
-    "enableI18nLegacyMessageIdFormat": false,
-    "strictInjectionParameters": true,
-    "strictInputAccessModifiers": true
-  },
-  "files": [],
-  "references": [
-    {
-      "path": "./tsconfig.app.json"
-    },
-    {
-      "path": "./tsconfig.spec.json"
-    }
-  ]
-}

apps/frontend/tsconfig.spec.json

@@ -1,9 +0,0 @@
-/* To learn more about Typescript configuration file: https://www.typescriptlang.org/docs/handbook/tsconfig-json.html. */
-/* To learn more about Angular compiler options: https://angular.dev/reference/configs/angular-compiler-options. */
-{
-  "extends": "./tsconfig.json",
-  "compilerOptions": {
-    "types": ["vitest/globals"]
-  },
-  "include": ["src/**/*.d.ts", "src/**/*.spec.ts"]
-}

db/README.md

@@ -1,6 +1,7 @@
 # Base de donnees
 
-PostgreSQL avec l'extension TimescaleDB. Non initialise, voir le ticket dedie.
+PostgreSQL 17 avec l'extension TimescaleDB, servie en local par le service `db` du
+`docker-compose.yml` racine (image `timescale/timescaledb-ha:pg17`).
 
 - `init` : scripts de bootstrap joues au premier demarrage du conteneur.
 - `migrations` : migrations SQL versionnees.
@@ -8,3 +9,31 @@ PostgreSQL avec l'extension TimescaleDB. Non initialise, voir le ticket dedie.
 
 Les migrations du schema applicatif expose par l'API vivent dans
 `apps/backend/alembic`, pas ici.
+
+## `init` ne rejoue jamais
+
+Ces scripts sont montes sur `/docker-entrypoint-initdb.d`, dont PostgreSQL ne joue le
+contenu qu'a la toute premiere initialisation, quand `PGDATA` est vide. Modifier ou
+ajouter un script ensuite reste sans effet sur une base existante : il faut detruire
+le volume, ce que fait `make db-reset`.
+
+L'image apporte ses propres scripts dans ce dossier, et ils comptent :
+
+| Script | Origine | Role |
+|---|---|---|
+| `000_install_timescaledb.sh` | image | Cree l'extension dans `postgres`, `template1` et la base applicative, et fixe `timescaledb.telemetry_level`. |
+| `001_timescaledb_tune.sh` | image | Lance `timescaledb-tune` sur la memoire et les CPU vus par le conteneur. |
+| `010_install_timescaledb_toolkit.sh` | image | Ajoute `timescaledb_toolkit`. |
+| `100-extensions.sql` | ce depot | Declare explicitement les extensions attendues. |
+| `110-test-database.sql` | ce depot | Cree `enervision_test`, attendue par la suite de tests du backend. |
+
+D'ou deux contraintes dans `docker-compose.yml`. Nos fichiers sont **montes un par un**,
+et non par leur dossier : un montage de `./db/init` sur `/docker-entrypoint-initdb.d`
+remplacerait le dossier de l'image au lieu de s'y ajouter, et ferait disparaitre les trois
+scripts ci-dessus sans le moindre message. Ajouter un fichier ici impose donc d'ajouter
+une ligne la-bas. Et leur numerotation commence a `100` pour passer apres `010`, y compris
+en locale C ou un prefixe a deux chiffres se trierait avant.
+
+Comme un bootstrap peut toujours avoir ete saute, deux gardes le rattrapent :
+`/api/v1/health/ready` repond 503 si l'extension n'est pas chargee, et la premiere
+revision Alembic refuse de s'appliquer.

db/init/100-extensions.sql

@@ -0,0 +1,4 @@
+-- Piege : ce script ne rejoue qu'a la premiere initialisation, quand PGDATA est vide.
+-- Le modifier ensuite reste sans effet tant que le volume n'est pas detruit.
+
+CREATE EXTENSION IF NOT EXISTS timescaledb;

db/init/110-test-database.sql

@@ -0,0 +1,8 @@
+-- Contrainte : le nom de cette base est code en dur dans apps/backend/tests/conftest.py.
+-- Elle sert la suite de tests de la stack locale, pas un deploiement.
+
+CREATE DATABASE enervision_test;
+
+\connect enervision_test
+
+CREATE EXTENSION IF NOT EXISTS timescaledb;

docker-compose.yml

@@ -0,0 +1,47 @@
+# Piege : PGDATA de l'image timescaledb-ha vaut /home/postgres/pgdata/data, pas le chemin
+# habituel de l'image postgres. Monte ailleurs, le volume ne retient rien, sans erreur.
+# Piege : db/init est monte fichier par fichier. Monter le dossier masquerait les scripts
+# d'init de l'image, dont timescaledb-tune. Ajouter un fichier impose une ligne ici.
+
+name: enervision
+
+services:
+  db:
+    image: timescale/timescaledb-ha:pg17
+    environment:
+      POSTGRES_USER: ${POSTGRES_USER:?}
+      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:?}
+      POSTGRES_DB: ${POSTGRES_DB:?}
+      TIMESCALEDB_TELEMETRY: ${TIMESCALEDB_TELEMETRY:-off}
+    ports:
+      - "${POSTGRES_PORT:-5433}:5432"
+    volumes:
+      - pgdata:/home/postgres/pgdata/data
+      - ./db/init/100-extensions.sql:/docker-entrypoint-initdb.d/100-extensions.sql:ro
+      - ./db/init/110-test-database.sql:/docker-entrypoint-initdb.d/110-test-database.sql:ro
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U $${POSTGRES_USER} -d $${POSTGRES_DB}"]
+      interval: 10s
+      timeout: 5s
+      retries: 12
+      start_period: 40s
+    restart: unless-stopped
+
+  backend:
+    build: ./apps/backend
+    depends_on:
+      db:
+        condition: service_healthy
+    environment:
+      APP_ENV: ${APP_ENV:-local}
+      APP_DEBUG: ${APP_DEBUG:-false}
+      APP_LOG_LEVEL: ${APP_LOG_LEVEL:-INFO}
+      APP_SECRET_KEY: ${APP_SECRET_KEY:?}
+      APP_CORS_ORIGINS: ${APP_CORS_ORIGINS:-http://localhost:4200}
+      DATABASE_URL: postgresql+asyncpg://${POSTGRES_USER}:${POSTGRES_PASSWORD}@db:5432/${POSTGRES_DB}
+    ports:
+      - "${BACKEND_PORT:-8000}:8000"
+    restart: unless-stopped
+
+volumes:
+  pgdata:

docs/adr/0001-postgresql-timescaledb.md

@@ -0,0 +1,66 @@
+# 0001 - PostgreSQL avec l'extension TimescaleDB
+
+- Statut : accepte
+- Date : 2026-09-14
+
+## Contexte
+
+EnerVision collecte, stocke et restitue des series temporelles energetiques sur une machine
+on-premise. La charge est dominee par des insertions horodatees en flux et par des lectures
+agregees sur des fenetres de temps. Airflow produira des agregations continues, Grafana lira
+les memes donnees, et l'API FastAPI les exposera.
+
+Un SGBD relationnel generaliste sait faire, mais degrade a mesure que la table de mesures
+grossit : les index se fragmentent, les balayages de fenetre deviennent couteux, et il faut
+ecrire a la main le partitionnement, la retention et les agregats pre-calcules.
+
+## Decision
+
+PostgreSQL 17 avec l'extension TimescaleDB, servie en local par l'image
+`timescale/timescaledb-ha:pg17`.
+
+PostgreSQL reste une base relationnelle standard : un seul SGBD pour les donnees metier et
+les mesures, un seul dialecte SQL, un seul pilote (`asyncpg`), et l'outillage habituel.
+TimescaleDB ajoute le partitionnement automatique, les agregations continues et les
+politiques de retention sans changer de moteur.
+
+L'image `-ha` plutot que l'image alpine : elle embarque `timescaledb_toolkit`, `postgis` et
+`pgvector`. Le toolkit porte les fonctions de comblement de trous et d'analyse de series dont
+l'ETL aura besoin, et changer d'image plus tard imposerait une reinitialisation du volume.
+
+PG17 plutot que PG18 : c'est la version la mieux couverte par Airflow et Grafana a ce jour.
+
+## Frontiere entre `db/` et `apps/backend/alembic/`
+
+C'est la regle que ce document existe surtout pour fixer.
+
+- `db/init/` : bootstrap joue **une seule fois**, a la premiere initialisation du conteneur.
+  Extensions, bases annexes. Ne rejoue jamais sur un volume existant.
+- `db/migrations/` : SQL versionne qui ne decoule pas du schema applicatif, typiquement les
+  politiques de retention et de compression TimescaleDB.
+- `apps/backend/alembic/` : le schema expose par l'API, et lui seul. C'est `Base.metadata`
+  qui fait foi.
+
+Une hypertable relevera des deux : Alembic cree la table, et le `create_hypertable()` vit
+dans la meme revision Alembic, parce que separer les deux rendrait le schema irreproductible
+depuis un seul `alembic upgrade head`.
+
+## Consequences
+
+- Le projet se lie a une extension, donc a un hebergement qui l'autorise. C'est acquis
+  puisque le deploiement est on-premise.
+- `CREATE EXTENSION` demande le superutilisateur : cela reste un acte de bootstrap, pas une
+  migration applicative.
+- Un bootstrap saute ne se voit pas au demarrage de l'API. Deux gardes couvrent ce cas :
+  `/api/v1/health/ready` repond 503 si l'extension est absente, et la premiere revision
+  Alembic refuse de s'appliquer.
+- L'image `-ha` pese environ 1 Go, a telecharger une fois par poste.
+
+## Alternatives ecartees
+
+- **PostgreSQL nu, partitionnement manuel** : faisable, mais il faudrait reecrire ce que
+  TimescaleDB fournit, et le maintenir.
+- **InfluxDB** : tres bon sur la serie temporelle, mais imposerait un second SGBD pour le
+  relationnel, donc deux dialectes, deux sauvegardes et des jointures applicatives.
+- **ClickHouse** : taille pour un volume analytique que le projet n'atteindra pas, et moins
+  a l'aise sur les ecritures unitaires frequentes du flux d'ingestion.