7.77.0 — corbeille réparée (FK favorites/recents) + MCP workspaces

- detach_page_references : nettoyage des références NO ACTION avant
  toute suppression définitive (unitaire, Empty Trash, purge 30 j)
- MCP : list_workspaces / get_workspace ; descriptions collections
  clarifiées (bases de données, pas des workspaces)
- 96 tests verts sur le périmètre (MCP, trash, cohérence)

tests/test_fusion_mcp_server.py

@@ -68,11 +68,35 @@ def test_mcp_handshake_et_outils(client, jeton):
     assert r.json()["result"]["serverInfo"]["name"] == "flowdeck"
     r = _rpc(client, jeton, 2, "tools/list")
     noms = [t["name"] for t in r.json()["result"]["tools"]]
-    assert noms == ["list_collections", "get_collection", "get_page",
+    assert noms == ["list_workspaces", "get_workspace",
+                    "list_collections", "get_collection", "get_page",
                     "search_pages", "list_repos", "create_page",
                     "update_page", "create_collection"]
 
 
+def test_mcp_workspaces(client, jeton):
+    with get_conn() as conn:
+        conn.execute("INSERT OR IGNORE INTO users (id, login) VALUES (1, 'tester')")
+        cur = conn.execute(
+            "INSERT INTO workspaces (name, owner_id) VALUES ('Techno', 1)")
+        wid = cur.lastrowid
+        conn.execute(
+            "INSERT INTO pages (workspace, workspace_id, title, parent_section) "
+            "VALUES ('Techno', ?, 'Page racine', 'Private')", (wid,))
+        conn.execute(
+            "INSERT INTO pages (workspace, workspace_id, title, parent_section, deleted_at) "
+            "VALUES ('Techno', ?, 'Page corbeille', 'Private', '2026-10-11 10:00:00')", (wid,))
+        conn.commit()
+    ws = _appel(client, jeton, 70, "list_workspaces")
+    techno = [w for w in ws if w["name"] == "Techno"]
+    assert techno and techno[0]["page_count"] == 1  # la corbeille ne compte pas
+    detail = _appel(client, jeton, 71, "get_workspace", {"id": wid})
+    assert detail["workspace"]["name"] == "Techno"
+    assert [p["title"] for p in detail["pages"]] == ["Page racine"]
+    res = _appel(client, jeton, 72, "get_workspace", {"id": 99999})
+    assert "introuvable" in res["erreur"]
+
+
 def test_mcp_collections_et_pages(client, jeton, donnees):
     cols = _appel(client, jeton, 1, "list_collections")
     alpha = [c for c in cols if c["name"] == "Projet Alpha"]