feat(vscode): statut git détaillé, sessions archivées, lien IDE web, fetch/pull (0.2.0)

Reflète la refonte IDE en supervision légère, sans dupliquer l'éditeur :
- statut git fin dans l'arbre (staged/unstaged/conflits + dernier commit) ;
- commande « Open Worktree IDE » → deep-link /workspace/:repoId/:wt ;
- commandes fetch / pull (ff-only|rebase) sur les worktrees ;
- event WS session_archived + réglage showArchivedSessions (badge + filtre).
README/CHANGELOG + tests (config/rest-client/ws-client).

packages/vscode/package.json

@@ -2,7 +2,7 @@
   "name": "git-arboretum",
   "displayName": "Arboretum",
   "description": "Pilot your git worktrees and Claude Code sessions from VS Code — native terminals, live tree, waiting alerts.",
-  "version": "0.1.1",
+  "version": "0.2.0",
   "private": true,
   "publisher": "johanleroy",
   "license": "MIT",
@@ -42,6 +42,11 @@
           "default": false,
           "markdownDescription": "Show Claude sessions discovered outside Arboretum (started from the CLI) in the trees. Off by default to avoid clutter."
         },
+        "arboretum.showArchivedSessions": {
+          "type": "boolean",
+          "default": false,
+          "markdownDescription": "Show finished sessions that Arboretum auto-archived after their retention window. Off by default to keep the trees focused on live work."
+        },
         "arboretum.notifyOnWaiting": {
           "type": "boolean",
           "default": true,
@@ -94,7 +99,10 @@
       { "command": "arboretum.createWorktree", "title": "Create Worktree…", "category": "Arboretum", "icon": "$(add)" },
       { "command": "arboretum.commitWorktree", "title": "Commit…", "category": "Arboretum", "icon": "$(git-commit)" },
       { "command": "arboretum.pushWorktree", "title": "Push", "category": "Arboretum", "icon": "$(repo-push)" },
+      { "command": "arboretum.fetchWorktree", "title": "Fetch", "category": "Arboretum", "icon": "$(cloud-download)" },
+      { "command": "arboretum.pullWorktree", "title": "Pull…", "category": "Arboretum", "icon": "$(arrow-down)" },
       { "command": "arboretum.promoteWorktree", "title": "Promote to Main", "category": "Arboretum", "icon": "$(arrow-up)" },
+      { "command": "arboretum.openWorktreeIde", "title": "Open Worktree IDE", "category": "Arboretum", "icon": "$(link-external)" },
       { "command": "arboretum.startSession", "title": "Start Claude Session", "category": "Arboretum", "icon": "$(play)" },
       { "command": "arboretum.startGroupSession", "title": "Start Group Session…", "category": "Arboretum", "icon": "$(play)" },
       { "command": "arboretum.startSessionHere", "title": "Start Session in Current Folder", "category": "Arboretum" },
@@ -111,9 +119,13 @@
       "view/item/context": [
         { "command": "arboretum.createWorktree", "when": "viewItem == arboretum:repo", "group": "inline" },
         { "command": "arboretum.startSession", "when": "viewItem == arboretum:repo", "group": "1_session" },
+        { "command": "arboretum.openWorktreeIde", "when": "viewItem == arboretum:worktree", "group": "inline" },
         { "command": "arboretum.commitWorktree", "when": "viewItem == arboretum:worktree", "group": "1_git" },
         { "command": "arboretum.pushWorktree", "when": "viewItem == arboretum:worktree", "group": "1_git" },
+        { "command": "arboretum.fetchWorktree", "when": "viewItem == arboretum:worktree", "group": "1_git" },
+        { "command": "arboretum.pullWorktree", "when": "viewItem == arboretum:worktree", "group": "1_git" },
         { "command": "arboretum.promoteWorktree", "when": "viewItem == arboretum:worktree", "group": "2_git" },
+        { "command": "arboretum.openWorktreeIde", "when": "viewItem == arboretum:worktree", "group": "2_git" },
         { "command": "arboretum.startSession", "when": "viewItem == arboretum:worktree", "group": "3_session" },
         { "command": "arboretum.attachSession", "when": "viewItem =~ /arboretum:session:live/", "group": "inline" },
         { "command": "arboretum.observeSession", "when": "viewItem =~ /arboretum:session:live/", "group": "1_term" },
@@ -137,7 +149,10 @@
         { "command": "arboretum.createWorktree", "when": "false" },
         { "command": "arboretum.commitWorktree", "when": "false" },
         { "command": "arboretum.pushWorktree", "when": "false" },
+        { "command": "arboretum.fetchWorktree", "when": "false" },
+        { "command": "arboretum.pullWorktree", "when": "false" },
         { "command": "arboretum.promoteWorktree", "when": "false" },
+        { "command": "arboretum.openWorktreeIde", "when": "false" },
         { "command": "arboretum.startSession", "when": "false" },
         { "command": "arboretum.startGroupSession", "when": "false" },
         { "command": "arboretum.revealWorktree", "when": "false" }