feat(agent): v4.15.0 - panneau Agent style Notion AI (mentions @ inline + skills / + actions sous chaque réponse)

- Composeur contenteditable : mentions inline (pastilles icône+nom), barre de contexte groupée documents/skills, sélecteur @ (icône+titre+chemin), skills intégrés + agent_skills + commandes admin via '/'
- Actions sous chaque réponse agent : copier, insérer dans la page, feedback 👍/👎
- Backend : table agent_feedback, GET /api/agent/mentions, POST /api/agent/feedback, contexte document:<id>/page:<id>/collection:<id> résolu en contenu réel
- Inclut le travail v4.14.0 (documents/espace de travail + outils + auto-titre de conversation)

app/services/context_builder.py

@@ -1,8 +1,8 @@
-"""FlowDeck — Agent context builder (v4.10.0).
+"""FlowDeck — Agent context builder (v4.14.0).
 
 Collects a compact, permission-filtered snapshot of the active workspace so the
-LLM can reason about real entities (collections, pages, Gitea issues) without
-touching the database directly.
+LLM can reason about real entities (workspaces, documents, collections, pages,
+Gitea issues) without touching the database directly.
 """
 from __future__ import annotations
 
@@ -27,6 +27,8 @@ class ContextBuilder:
         if include_collections:
             sections.append(self._collections_context())
         sections.append(self._pages_context())
+        sections.append(self._documents_context())
+        sections.append(self._workspaces_context())
         if mentions:
             sections.append(self._mentions_context(mentions))
         if files:
@@ -68,11 +70,66 @@ class ContextBuilder:
             lines.append(f"- page #{r['id']} in collection #{r['collection_id']}: **{r['title']}**{(' — ' + summary) if summary else ''}")
         return "\n".join(lines)
 
+    def _documents_context(self, limit: int = 30) -> str:
+        """Recent editor documents (`pages`), usable with create/read/update tools."""
+        with get_conn() as conn:
+            ws_names = dict(
+                conn.execute("SELECT id, name FROM workspaces").fetchall()
+            )
+            rows = conn.execute(
+                "SELECT id, title, workspace_id, content_format, parent_id "
+                "FROM pages WHERE deleted_at IS NULL ORDER BY updated_at DESC LIMIT ?",
+                (limit,),
+            ).fetchall()
+        if not rows:
+            return "## Documents\n(aucun document)"
+        lines = ["## Documents (pages éditeur — outils: read_document, write_blocks, create_document)"]
+        for r in rows:
+            ws_name = ws_names.get(r["workspace_id"], str(r["workspace_id"]) if r["workspace_id"] else "racine")
+            lines.append(f"- document #{r['id']} **{r['title'] or 'Sans titre'}** (espace: {ws_name})")
+        return "\n".join(lines)
+
+    def _workspaces_context(self) -> str:
+        """Workspaces accessible to the current user (with counts)."""
+        base_sql = (
+            "SELECT w.id, w.name, {role} AS role, "
+            "(SELECT COUNT(*) FROM pages p WHERE p.workspace_id=w.id AND p.deleted_at IS NULL) AS document_count "
+            "FROM workspaces w {join} {where} ORDER BY w.name"
+        )
+        with get_conn() as conn:
+            if self.user_id is None:
+                rows = conn.execute(
+                    base_sql.format(role="'owner'", join="", where=""), []
+                ).fetchall()
+            else:
+                rows = conn.execute(
+                    base_sql.format(
+                        role="COALESCE(wm.role, CASE WHEN w.owner_id=? THEN 'owner' ELSE 'viewer' END)",
+                        join="LEFT JOIN workspace_members wm ON wm.workspace_id=w.id AND wm.user_id=?",
+                        where="WHERE w.owner_id=? OR wm.user_id IS NOT NULL",
+                    ),
+                    (self.user_id, self.user_id, self.user_id),
+                ).fetchall()
+        if not rows:
+            return "## Espaces de travail\n(aucun espace)"
+        lines = ["## Espaces de travail (outil: read_workspaces)"]
+        for r in rows:
+            lines.append(f"- espace #{r['id']} **{r['name']}** ({r['role']}, {r['document_count']} document(s))")
+        return "\n".join(lines)
+
     def _mentions_context(self, mentions: list[str]) -> str:
-        """Resolve @collection:x / @page:y / @repo:o/r mentions to entity snapshots."""
+        """Resolve @document:x / @collection:x / @page:y / @repo:o/r mentions.
+
+        Mentions bring the *actual content* of the referenced object into the
+        context so the LLM can summarise / rewrite / analyse it directly without
+        needing a read tool round-trip (and so the offline mock stays useful).
+        """
         lines = ["## Mentioned context"]
         for m in mentions:
-            if m.startswith("collection:"):
+            if m.startswith("document:"):
+                pid = m.split(":", 1)[1]
+                lines.append(self._single_document(pid))
+            elif m.startswith("collection:"):
                 cid = m.split(":", 1)[1]
                 lines.append(self._single_collection(cid))
             elif m.startswith("page:"):
@@ -84,6 +141,74 @@ class ContextBuilder:
                 lines.append("- @ws: full workspace context included above")
         return "\n".join(lines)
 
+    @staticmethod
+    def _blocks_to_text(content: str, limit: int = 9000) -> str:
+        """Flatten a ``blocks`` document JSON into plain readable text.
+
+        Collects the textual payload of each block (content, title, caption,
+        children, meeting notes/summary) — enough for the LLM to reason about a
+        mentioned editor page without the full block schema.
+        """
+        try:
+            blocks = json.loads(content or "[]")
+        except (json.JSONDecodeError, TypeError):
+            return ""
+        if not isinstance(blocks, list):
+            return ""
+
+        _TEXT_KEYS = ("content", "title", "caption", "plain_text", "notes", "summary")
+        out: list[str] = []
+        total = 0
+
+        def walk(node):
+            nonlocal total
+            if total >= limit:
+                return
+            if isinstance(node, dict):
+                for k in _TEXT_KEYS:
+                    v = node.get(k)
+                    if isinstance(v, str) and v.strip():
+                        line = v.replace("\r\n", "\n").strip()
+                        out.append(line)
+                        total += len(line) + 1
+                        if total >= limit:
+                            return
+                for v in node.values():
+                    walk(v)
+            elif isinstance(node, list):
+                for item in node:
+                    walk(item)
+
+        walk(blocks)
+        return "\n".join(out)[:limit]
+
+    def _single_document(self, pid: str) -> str:
+        """Full editor-document mention: title + workspace + real content."""
+        with get_conn() as conn:
+            row = conn.execute(
+                "SELECT p.*, w.name AS ws_name FROM pages p "
+                "LEFT JOIN workspaces w ON w.id=p.workspace_id "
+                "WHERE p.id=? AND p.deleted_at IS NULL",
+                (pid,),
+            ).fetchone()
+        if not row:
+            return f"- document #{pid}: not found"
+        title = row["title"] or "Sans titre"
+        ws = row["ws_name"] or ""
+        loc = f" (espace: {ws})" if ws else ""
+        fmt = row["content_format"] or "blocks"
+        raw = row["content"] or ""
+        if fmt == "markdown":
+            body = raw.strip()
+        elif fmt == "file":
+            body = ""
+        else:
+            body = self._blocks_to_text(raw)
+        head = f"- document #{row['id']} **{title}**{loc}"
+        if body:
+            return f"{head}:\n{body[:9000]}"
+        return head
+
     def _single_collection(self, cid: str) -> str:
         with get_conn() as conn:
             row = conn.execute("SELECT id, name, icon, schema_json FROM collections WHERE id=?", (cid,)).fetchone()