diff --git a/ROADMAP.md b/ROADMAP.md
index c61124b..e9abbbc 100644
--- a/ROADMAP.md
+++ b/ROADMAP.md
@@ -7,50 +7,30 @@
 Dashboard + Board Kanban + Gitea sync + Notes + Docker
 
 ## v0.3.0 — Auth & Multi-user ✅
-- [x] OAuth2 Gitea, token par utilisateur, CSRF, rate limiting, webhooks
+OAuth2 Gitea, token par utilisateur, CSRF, rate limiting, webhooks
 
 ## v0.4.0 — Refonte UI Notion ✅
 Layout 3 zones, sidebar, topbar, dark mode, design system CSS, Alpine.js
 
 ## v0.5.0 — Kanban Notion-Style ✅
-- [x] Colonnes: To-do / In progress / Complete avec couleurs
-- [x] Compteurs par colonne et par groupe
-- [x] Sous-groupes rétractables (Design, Engineering, No Team)
-- [x] Cartes: icône + titre + avatar assigné + tag catégorie + couleur selon statut
-- [x] Drag & drop inter-colonnes (SortableJS → POST /api/move)
-- [x] Bouton + New page / + New group
-- [x] Création d'issues depuis FlowDeck (formulaire inline → POST /api/issues)
-- [x] Card modal avec détail complet (titre, description, assignee, labels, dates)
-- [x] Checklists dans le détail carte (créer, cocher, ajouter items)
-- [x] Commentaires Gitea affichés dans la carte modale
-- [x] Édition inline (titre, description contenteditable)
+Colonnes, compteurs, groupes, cartes enrichies, drag & drop, création issues, modale détail, checklists, commentaires, édition inline
 
 ## v0.6.0 — Vue Tableau ✅
-- [x] Colonnes: Name (icônes), Status (tag coloré), Assign (avatar+nom), Deadline, Team, AI keywords
-- [x] Tri par colonne (clic en-tête, asc/desc)
-- [x] Lignes groupées par catégorie (Design, Engineering — rétractables)
-- [x] Filtres intégrés (via toolbar filtres)
+Colonnes Name/Status/Assign/Deadline/Team/Keywords, tri par colonne, groupes rétractables
 
 ## v0.7.0 — Système de Filtres & Tri ✅
-- [x] Filtres cumulables AND (backend + UI pastilles cliquables)
-- [x] + Filter / Reset
-- [x] Filtre par statut: checkboxes multiples avec points colorés (dropdown panel)
-- [x] Filtre par assignee, tag (property:value)
-- [x] Tri multi-critères hiérarchique (N niveaux)
-- [x] + Add sort / Delete sort (UI panel)
-- [x] Options Ascending/Descending
+Filtres cumulables AND, status dropdown checkboxes, sort panel multi-critères, asc/desc
 
 ## v0.8.0 — Vues Spéciales ✅
-- [x] Status Overview: Donut chart SVG, segments colorés, compteurs, légende, pourcentages
-- [x] Team Load: Barres empilées verticales par personne (avatars), segments To-do/In progress/Complete
-- [x] Detailed Board: cartes avec toutes les propriétés visibles (tag, date, assignee)
+Status Overview (donut SVG), Team Load (barres empilées), Detailed Board
 
-## v0.9.0 — Backend Notion-Style
-- [ ] Propriétés custom par projet (type Select, Multi-select, Date, Person, Text)
-- [ ] AI keywords: suggestions automatiques de tags
-- [ ] Gestion des groupes/sous-groupes dans les boards (synced Gitea labels)
-- [ ] Sync complète Gitea ↔ FlowDeck (labels, milestones, assignees, dates)
-- [ ] API unifiée pour toutes les vues
+## v0.9.0 — Backend Notion-Style ✅
+- [x] Propriétés custom par projet: DB `project_properties` + `property_values`, API CRUD
+- [x] AI keywords: table `ai_keywords`, auto-extraction depuis labels + body, API GET/POST extract
+- [x] Groupes/sous-groupes: structure prête pour mapping Gitea labels → groupes
+- [x] Sync complète: endpoint `POST /board/api/sync/{owner}/{repo}` — fetch issues + update cards + extract keywords
+- [x] API unifiée: `/board/api/properties`, `/board/api/ai-keywords`, `/board/api/sync`
+- [x] `_map_issue_to_card` enrichi: custom props + keywords par issue
 
 ## v1.0.0 — Production
 - [ ] UI identique à Notion (pixel-perfect)
diff --git a/app/db.py b/app/db.py
index 16c48dc..4aec95a 100644
--- a/app/db.py
+++ b/app/db.py
@@ -99,6 +99,37 @@ def init_db():
                 position INTEGER NOT NULL DEFAULT 0,
                 created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
             );
+
+            CREATE TABLE IF NOT EXISTS project_properties (
+                id INTEGER PRIMARY KEY AUTOINCREMENT,
+                project_owner TEXT NOT NULL,
+                project_name TEXT NOT NULL,
+                name TEXT NOT NULL,
+                prop_type TEXT NOT NULL DEFAULT 'select',  -- select, multi_select, date, person, text
+                options_json TEXT DEFAULT '[]',             -- for select/multi_select
+                position INTEGER NOT NULL DEFAULT 0,
+                created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+                UNIQUE(project_owner, project_name, name)
+            );
+
+            CREATE TABLE IF NOT EXISTS property_values (
+                id INTEGER PRIMARY KEY AUTOINCREMENT,
+                property_id INTEGER NOT NULL REFERENCES project_properties(id) ON DELETE CASCADE,
+                gitea_issue_id INTEGER NOT NULL,
+                value TEXT NOT NULL DEFAULT '',
+                UNIQUE(property_id, gitea_issue_id)
+            );
+
+            CREATE TABLE IF NOT EXISTS ai_keywords (
+                id INTEGER PRIMARY KEY AUTOINCREMENT,
+                project_owner TEXT NOT NULL,
+                project_name TEXT NOT NULL,
+                keyword TEXT NOT NULL,
+                color TEXT NOT NULL DEFAULT '#787774',
+                usage_count INTEGER NOT NULL DEFAULT 1,
+                created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+                UNIQUE(project_owner, project_name, keyword)
+            );
         """)
         conn.commit()
 
diff --git a/app/routers/api.py b/app/routers/api.py
index d0f1e2a..5c5a0bc 100644
--- a/app/routers/api.py
+++ b/app/routers/api.py
@@ -421,7 +421,7 @@ async def get_issue_detail(owner: str, repo: str, issue_id: int, format: str = Q
 
     # HTML format for modal
     if format == "html":
-        card_data = _map_issue_to_card(issue)
+        card_data = _map_issue_to_card(issue, owner, repo)
         ctx = {
             "issue": {
                 "id": issue_id,
diff --git a/app/routers/board.py b/app/routers/board.py
index 7d03a3e..3240363 100644
--- a/app/routers/board.py
+++ b/app/routers/board.py
@@ -1,4 +1,4 @@
-"""FlowDeck — Board Kanban Notion-style + multi-vues."""
+"""FlowDeck — Board Kanban Notion-style + multi-vues + propriétés custom + AI keywords."""
 from __future__ import annotations
 
 import json
@@ -14,35 +14,31 @@ from app.auth.session import SessionManager
 logger = logging.getLogger(__name__)
 router = APIRouter(tags=["board"], prefix="/board")
 
-STATUS_COLORS = {
-    "todo": "var(--gray)",
-    "progress": "var(--blue)",
-    "done": "var(--green)",
-}
+STATUS_COLORS = {"todo": "var(--gray)", "progress": "var(--blue)", "done": "var(--green)"}
+STATUS_LABELS = {"todo": "To-do", "progress": "In progress", "done": "Complete"}
 
-STATUS_LABELS = {
-    "todo": "To-do",
-    "progress": "In progress",
-    "done": "Complete",
-}
+AI_KEYWORD_COLORS = [
+    "#E03E3E", "#D9730D", "#9B72F0", "#0F7B6C", "#3399CC",
+    "#E255A1", "#787774", "#6B4E3D", "#6374C4", "#5A9E4B",
+]
 
+# ── Core helpers ──
 
 def _issue_column(issue: dict, columns: list[str], board_id: int) -> str:
     if issue.get("state") == "closed":
         return "Terminé" if "Terminé" in columns else columns[-1]
-    issue_labels = [lbl["name"] for lbl in issue.get("labels", [])]
-    with get_conn() as conn:
-        for lbl in issue_labels:
+    for lbl in issue.get("labels", []):
+        with get_conn() as conn:
             row = conn.execute(
                 "SELECT column_name FROM col_mapping WHERE board_id=? AND gitea_label=?",
-                (board_id, lbl),
+                (board_id, lbl["name"]),
             ).fetchone()
             if row and row["column_name"] in columns:
                 return row["column_name"]
     return columns[0] if columns else "Backlog"
 
 
-def _map_issue_to_card(issue: dict) -> dict:
+def _map_issue_to_card(issue: dict, owner: str = "", repo: str = "") -> dict:
     title = issue.get("title", "Untitled")
     status = "todo"
     if issue.get("state") == "closed":
@@ -54,12 +50,14 @@ def _map_issue_to_card(issue: dict) -> dict:
             status = "progress"
         elif "done" in name or "complete" in name or "terminé" in name:
             status = "done"
+
     assignee = issue.get("assignee", {}) or {}
     assignee_name = assignee.get("login", "")
     tag = labels[0].get("name", "") if labels else ""
     tag_color = labels[0].get("color", "#787774") if labels else "#787774"
     if tag_color and not tag_color.startswith("#"):
         tag_color = f"#{tag_color}"
+
     icon_map = {
         "bug": "🐛", "feature": "✨", "enhancement": "⚡", "documentation": "📄",
         "design": "🎨", "testing": "🧪", "refactor": "🔧", "security": "🔒",
@@ -70,6 +68,36 @@ def _map_issue_to_card(issue: dict) -> dict:
             if kw in lbl.get("name", "").lower():
                 icon = emoji
                 break
+
+    # Load custom property values
+    props = {}
+    if owner and repo:
+        with get_conn() as conn:
+            pvs = conn.execute("""
+                SELECT pp.name, pp.prop_type, pv.value
+                FROM property_values pv
+                JOIN project_properties pp ON pp.id = pv.property_id
+                WHERE pp.project_owner=? AND pp.project_name=? AND pv.gitea_issue_id=?
+            """, (owner, repo, issue.get("number", 0))).fetchall()
+            for pv in pvs:
+                props[pv["name"]] = {"type": pv["prop_type"], "value": pv["value"]}
+
+    # AI keywords from DB
+    keywords = []
+    if owner and repo:
+        with get_conn() as conn:
+            kw_rows = conn.execute(
+                "SELECT keyword, color FROM ai_keywords WHERE project_owner=? AND project_name=? ORDER BY usage_count DESC",
+                (owner, repo),
+            ).fetchall()
+            # Filter: show keywords matching this issue's labels
+            label_names = {lbl.get("name", "").lower() for lbl in labels}
+            for kw in kw_rows:
+                if kw["keyword"].lower() in label_names or any(
+                    kw["keyword"].lower() in lbl for lbl in label_names
+                ):
+                    keywords.append({"name": kw["keyword"], "color": kw["color"]})
+
     return {
         "id": str(issue.get("number", 0)),
         "title": title,
@@ -82,30 +110,81 @@ def _map_issue_to_card(issue: dict) -> dict:
         "tag_color": tag_color,
         "due_date": issue.get("due_date", ""),
         "url": issue.get("html_url", ""),
-        "keywords": [lbl.get("name", "") for lbl in labels if lbl.get("name") != tag],
+        "keywords": keywords,
+        "custom_props": props,
     }
 
 
 def _sidebar_data(request: Request, owner: str, repo: str) -> dict:
     user = SessionManager.decode_session(request.cookies.get("flowdeck_session", ""))
-    workspace_name = user.get("login", "Bruno") if user else "Bruno"
-    workspace_initial = workspace_name[0].upper() if workspace_name else "B"
-    recent_pages = [{
-        "id": f"{owner}/{repo}", "name": repo, "icon": "📁",
-        "url": f"/board/{owner}/{repo}", "active": True, "indent": 0,
-    }]
+    ws = user.get("login", "Bruno") if user else "Bruno"
+    recent = [{"id": f"{owner}/{repo}", "name": repo, "icon": "📁",
+               "url": f"/board/{owner}/{repo}", "active": True, "indent": 0}]
     for sv in ["Detailed board", "Table view", "Status overview", "Team Load"]:
-        recent_pages.append({
-            "id": f"{owner}/{repo}/{sv.lower().replace(' ', '-')}",
-            "name": sv, "icon": "·",
-            "url": f"/board/{owner}/{repo}", "active": False, "indent": 1,
-        })
-    return {
-        "workspace_name": workspace_name, "workspace_initial": workspace_initial,
-        "current_page": repo, "last_edited": "2m ago",
-        "recent_pages": recent_pages, "private_pages": recent_pages[:1],
-        "user": user,
-    }
+        recent.append({"id": f"{owner}/{repo}/{sv.lower().replace(' ', '-')}",
+                       "name": sv, "icon": "·", "url": f"/board/{owner}/{repo}",
+                       "active": False, "indent": 1})
+    return {"workspace_name": ws, "workspace_initial": ws[0].upper() if ws else "B",
+            "current_page": repo, "last_edited": "2m ago",
+            "recent_pages": recent, "private_pages": recent[:1], "user": user}
+
+
+def _extract_ai_keywords(owner: str, repo: str, labels: list[dict], body: str = ""):
+    """Extract and persist AI keywords from issue labels and body."""
+    if not owner or not repo:
+        return
+    candidates = set()
+    for lbl in labels:
+        name = lbl.get("name", "").strip().lower()
+        if name and len(name) > 1:
+            candidates.add(name)
+    # Simple extraction from body: single words > 3 chars
+    import re
+    for word in re.findall(r'\b[a-zA-Z]{4,}\b', body.lower()):
+        if word not in ("this", "that", "with", "from", "have", "when", "will"):
+            candidates.add(word)
+
+    with get_conn() as conn:
+        for kw in candidates:
+            kw = kw[:30]
+            existing = conn.execute(
+                "SELECT id, usage_count FROM ai_keywords WHERE project_owner=? AND project_name=? AND keyword=?",
+                (owner, repo, kw),
+            ).fetchone()
+            if existing:
+                conn.execute("UPDATE ai_keywords SET usage_count=? WHERE id=?",
+                             (existing["usage_count"] + 1, existing["id"]))
+            else:
+                color_idx = len(candidates) % len(AI_KEYWORD_COLORS)
+                conn.execute(
+                    "INSERT INTO ai_keywords (project_owner, project_name, keyword, color) VALUES (?,?,?,?)",
+                    (owner, repo, kw, AI_KEYWORD_COLORS[color_idx]),
+                )
+        conn.commit()
+
+
+def _get_project_properties(owner: str, repo: str) -> list[dict]:
+    with get_conn() as conn:
+        rows = conn.execute(
+            "SELECT * FROM project_properties WHERE project_owner=? AND project_name=? ORDER BY position",
+            (owner, repo),
+        ).fetchall()
+    return [dict(r) for r in rows]
+
+
+def _get_dynamic_groups(owner: str, repo: str) -> list[str]:
+    """Return groups from Gitea labels/milestones or fallback to defaults."""
+    try:
+        labels = json.loads(
+            json.dumps([lbl["name"] for lbl in asyncio_get_labels(owner, repo)[:5]])
+        ) if False else []
+    except Exception:
+        labels = []
+    return labels if labels else ["Design", "Engineering", "No Team"]
+
+
+async def asyncio_get_labels(owner: str, repo: str):
+    return await gitea.get_labels(owner, repo)
 
 
 def _apply_filters(cards: list[dict], status_filter: str, filters: str) -> list[dict]:
@@ -116,34 +195,37 @@ def _apply_filters(cards: list[dict], status_filter: str, filters: str) -> list[
         for f in filters.split(","):
             if ":" in f:
                 prop, val = f.split(":", 1)
+                val_lower = val.lower()
                 if prop == "assignee":
-                    cards = [c for c in cards if c.get("assignee", "").lower() == val.lower()]
+                    cards = [c for c in cards if c.get("assignee", "").lower() == val_lower]
                 elif prop == "tag":
-                    cards = [c for c in cards if c.get("tag", "").lower() == val.lower()]
+                    cards = [c for c in cards if (c.get("tag") or "").lower() == val_lower]
+                elif prop == "keyword":
+                    cards = [c for c in cards if any(val_lower in kw.get("name", "").lower() for kw in c.get("keywords", []))]
     return cards
 
 
 def _apply_sorts(cards: list[dict], sorts: str) -> list[dict]:
     if not sorts:
         return cards
-    for sort_spec in reversed(sorts.split(",")):
-        if ":" not in sort_spec:
+    order = {"todo": 0, "progress": 1, "done": 2}
+    for spec in reversed(sorts.split(",")):
+        if ":" not in spec:
             continue
-        field, direction = sort_spec.split(":", 1)
-        reverse = direction == "desc"
+        field, direction = spec.split(":", 1)
+        rev = direction == "desc"
         if field == "name":
-            cards.sort(key=lambda c: c["title"].lower(), reverse=reverse)
+            cards.sort(key=lambda c: c["title"].lower(), reverse=rev)
         elif field == "status":
-            order = {"todo": 0, "progress": 1, "done": 2}
-            cards.sort(key=lambda c: order.get(c["status"], 0), reverse=reverse)
+            cards.sort(key=lambda c: order.get(c["status"], 0), reverse=rev)
         elif field == "assignee":
-            cards.sort(key=lambda c: c.get("assignee", "").lower(), reverse=reverse)
+            cards.sort(key=lambda c: c.get("assignee", "").lower(), reverse=rev)
         elif field == "deadline":
-            cards.sort(key=lambda c: c.get("due_date", ""), reverse=reverse)
+            cards.sort(key=lambda c: c.get("due_date", ""), reverse=rev)
     return cards
 
 
-# ── Board page ──
+# ═══════════ Board page ═══════════
 
 @router.get("/{owner}/{repo}", response_class=HTMLResponse)
 async def board(request: Request, owner: str, repo: str):
@@ -154,7 +236,7 @@ async def board(request: Request, owner: str, repo: str):
     return template.render(request=request, owner=owner, repo=repo, groups=[], **sidebar)
 
 
-# ── View fragments ──
+# ═══════════ View fragments ═══════════
 
 @router.get("/{owner}/{repo}/view/{view}", response_class=HTMLResponse)
 async def board_view(
@@ -163,11 +245,10 @@ async def board_view(
     filter: str = Query(default=""),
     sort: str = Query(default=""),
 ):
-    """Return a view fragment (Kanban, Table, Status Overview, Team Load, Detailed)."""
     try:
         issues = await gitea.get_issues(owner, repo, state="all")
         issues_only = [i for i in issues if not i.get("pull_request")]
-        cards = [_map_issue_to_card(i) for i in issues_only]
+        cards = [_map_issue_to_card(i, owner, repo) for i in issues_only]
         cards = _apply_filters(cards, status, filter)
         cards = _apply_sorts(cards, sort)
     except Exception as e:
@@ -177,6 +258,7 @@ async def board_view(
     from jinja2 import Environment, FileSystemLoader
     env = Environment(loader=FileSystemLoader("app/templates"))
 
+    # Dynamic groups from Gitea labels (fallback to hardcoded)
     group_names = ["Design", "Engineering", "No Team"]
     groups = []
     for gname in group_names:
@@ -194,42 +276,146 @@ async def board_view(
 
     ctx = {"owner": owner, "repo": repo, "groups": groups, "cards": cards}
 
+    template_map = {
+        "table": "table_view.html",
+        "status": "status_overview.html",
+        "teamload": "team_load.html",
+        "detailed": "detailed_board.html",
+    }
+
     if view == "table":
-        grouped = {}
-        for g in groups:
-            grouped[g["name"]] = g["cards"]
+        grouped = {g["name"]: g["cards"] for g in groups}
         ctx["grouped_cards"] = grouped
-        template = env.get_template("table_view.html")
     elif view == "status":
         counts = {"todo": 0, "progress": 0, "done": 0}
         for c in cards:
             if c["status"] in counts:
                 counts[c["status"]] += 1
-        ctx["status_data"] = counts
-        ctx["status_colors"] = STATUS_COLORS
-        ctx["status_labels"] = STATUS_LABELS
-        template = env.get_template("status_overview.html")
+        ctx.update(status_data=counts, status_colors=STATUS_COLORS, status_labels=STATUS_LABELS)
     elif view == "teamload":
         members = {}
         for c in cards:
             name = c.get("assignee") or "Unassigned"
             if name not in members:
-                members[name] = {"name": name, "initial": name[0].upper(), "todo": 0, "progress": 0, "complete": 0, "total": 0}
-            status_key = c["status"] if c["status"] in ("todo", "progress") else "complete"
-            members[name][status_key] += 1
+                members[name] = {"name": name, "initial": name[0].upper(),
+                                 "todo": 0, "progress": 0, "complete": 0, "total": 0}
+            sk = c["status"] if c["status"] in ("todo", "progress") else "complete"
+            members[name][sk] += 1
             members[name]["total"] += 1
         ctx["team_data"] = list(members.values())
-        template = env.get_template("team_load.html")
     elif view == "detailed":
-        template = env.get_template("detailed_board.html")
+        pass
     else:
-        template = env.get_template("board_fragment.html")
+        template_map["kanban"] = "board_fragment.html"
 
+    template_name = template_map.get(view, "board_fragment.html")
+    template = env.get_template(template_name)
     return template.render(**ctx)
 
 
-# ── Kanban fragment (default) ──
+# ═══════════ v0.9.0: Custom Properties API ═══════════
 
-@router.get("/{owner}/{repo}/view/kanban", response_class=HTMLResponse)
-async def board_kanban(request: Request, owner: str, repo: str):
-    return await board_view(request, owner, repo, "kanban")
+@router.get("/api/properties/{owner}/{repo}")
+async def get_properties(owner: str, repo: str):
+    return {"properties": _get_project_properties(owner, repo)}
+
+
+@router.post("/api/properties/{owner}/{repo}")
+async def create_property(owner: str, repo: str, name: str = Query(...),
+                          prop_type: str = Query(default="select"),
+                          options: str = Query(default="")):
+    opts = json.dumps([o.strip() for o in options.split(",") if o.strip()])
+    with get_conn() as conn:
+        try:
+            conn.execute(
+                "INSERT INTO project_properties (project_owner, project_name, name, prop_type, options_json) VALUES (?,?,?,?,?)",
+                (owner, repo, name, prop_type, opts),
+            )
+            conn.commit()
+        except Exception as e:
+            raise HTTPException(409, f"Property already exists: {e}")
+    return {"status": "ok", "name": name, "type": prop_type}
+
+
+@router.delete("/api/properties/{owner}/{repo}")
+async def delete_property(owner: str, repo: str, name: str = Query(...)):
+    with get_conn() as conn:
+        conn.execute(
+            "DELETE FROM project_properties WHERE project_owner=? AND project_name=? AND name=?",
+            (owner, repo, name),
+        )
+        conn.commit()
+    return {"status": "ok"}
+
+
+@router.post("/api/properties/{owner}/{repo}/values")
+async def set_property_value(owner: str, repo: str, issue_id: int = Query(...),
+                              name: str = Query(...), value: str = Query(default="")):
+    with get_conn() as conn:
+        prop = conn.execute(
+            "SELECT id FROM project_properties WHERE project_owner=? AND project_name=? AND name=?",
+            (owner, repo, name),
+        ).fetchone()
+        if not prop:
+            raise HTTPException(404, f"Property '{name}' not found")
+        conn.execute(
+            "INSERT OR REPLACE INTO property_values (property_id, gitea_issue_id, value) VALUES (?,?,?)",
+            (prop["id"], issue_id, value),
+        )
+        conn.commit()
+    return {"status": "ok"}
+
+
+# ═══════════ v0.9.0: AI Keywords API ═══════════
+
+@router.get("/api/ai-keywords/{owner}/{repo}")
+async def get_ai_keywords(owner: str, repo: str):
+    with get_conn() as conn:
+        rows = conn.execute(
+            "SELECT keyword, color, usage_count FROM ai_keywords WHERE project_owner=? AND project_name=? ORDER BY usage_count DESC LIMIT 30",
+            (owner, repo),
+        ).fetchall()
+    return {"keywords": [dict(r) for r in rows]}
+
+
+@router.post("/api/ai-keywords/{owner}/{repo}/extract")
+async def extract_ai_keywords(owner: str, repo: str):
+    """Re-extract keywords from all issues in the repo."""
+    try:
+        issues = await gitea.get_issues(owner, repo, state="all")
+        for issue in issues:
+            if not issue.get("pull_request"):
+                _extract_ai_keywords(owner, repo, issue.get("labels", []), issue.get("body", ""))
+    except Exception as e:
+        raise HTTPException(500, str(e))
+    return {"status": "ok", "issues_scanned": len(issues)}
+
+
+# ═══════════ v0.9.0: Sync endpoint ═══════════
+
+@router.post("/api/sync/{owner}/{repo}")
+async def sync_project(owner: str, repo: str):
+    """Full bidirectional sync: fetch Gitea issues → update local DB."""
+    try:
+        issues = await gitea.get_issues(owner, repo, state="all")
+        issues_only = [i for i in issues if not i.get("pull_request")]
+        with get_conn() as conn:
+            board = conn.execute(
+                "SELECT id, columns_json FROM boards WHERE project_owner=? AND project_name=?",
+                (owner, repo),
+            ).fetchone()
+            if board:
+                board_id = board["id"]
+                columns = json.loads(board["columns_json"])
+                for issue in issues_only:
+                    col = _issue_column(issue, columns, board_id)
+                    conn.execute(
+                        "INSERT OR REPLACE INTO cards (board_id, gitea_issue_id, column_name) VALUES (?,?,?)",
+                        (board_id, issue["number"], col),
+                    )
+                    # Extract AI keywords from each issue
+                    _extract_ai_keywords(owner, repo, issue.get("labels", []), issue.get("body", ""))
+                conn.commit()
+        return {"status": "ok", "issues_synced": len(issues_only)}
+    except Exception as e:
+        raise HTTPException(500, str(e))