feat: causal lab — éditeur visuel, types nœuds, force/signe arêtes, NFP v2

backend/routers/causal_lab.py

@@ -306,6 +306,16 @@ class UpdateCoefRequest(BaseModel):
     coefficients: dict  # {coef_key: float}
 
 
+class CreateTemplateRequest(BaseModel):
+    name: str
+    category: str
+    sub_type: str = ""
+    description: str = ""
+    instruments: list = ["EURUSD"]
+    graph_json: dict
+    ai_rationale: str = ""
+
+
 class RecommendRequest(BaseModel):
     market_event_id: int
 
@@ -314,8 +324,8 @@ class AnalyzeRequest(BaseModel):
     market_event_id: int
     template_id: int
     instrument: str = "EURUSD"
-    inputs: dict = {}           # Inputs manuels (ex: tone_score)
-    coef_overrides: dict = {}   # Coefficients overrides pour cet run
+    inputs: dict = {}
+    coef_overrides: dict = {}
 
 
 # ── Endpoints ─────────────────────────────────────────────────────────────────
@@ -359,6 +369,62 @@ def list_templates(category: str = Query("")):
         raise HTTPException(500, str(e))
 
 
+@router.post("/api/causal-lab/template")
+def create_template(body: CreateTemplateRequest):
+    """Crée un nouveau template utilisateur."""
+    try:
+        from services.database import get_conn
+        from services.causal_graphs import init_tables, seed_templates
+        conn = get_conn()
+        init_tables(conn); seed_templates(conn)
+        existing = conn.execute(
+            "SELECT id FROM causal_graph_templates WHERE name = ?", (body.name,)
+        ).fetchone()
+        if existing:
+            raise HTTPException(409, f"Un template nommé '{body.name}' existe déjà")
+        cur = conn.execute("""
+            INSERT INTO causal_graph_templates
+                (name, category, sub_type, instruments, description, graph_json, ai_rationale, created_by)
+            VALUES (?, ?, ?, ?, ?, ?, ?, 'user')
+        """, (
+            body.name, body.category, body.sub_type,
+            json.dumps(body.instruments), body.description,
+            json.dumps(body.graph_json), body.ai_rationale,
+        ))
+        conn.commit()
+        new_id = cur.lastrowid
+        conn.close()
+        return {"id": new_id, "name": body.name}
+    except HTTPException:
+        raise
+    except Exception as e:
+        logger.error(f"[causal_lab] create_template: {e}")
+        raise HTTPException(500, str(e))
+
+
+@router.delete("/api/causal-lab/template/{template_id}")
+def delete_template(template_id: int):
+    """Supprime un template utilisateur (les templates system sont protégés)."""
+    try:
+        from services.database import get_conn
+        conn = get_conn()
+        row = conn.execute(
+            "SELECT created_by FROM causal_graph_templates WHERE id = ?", (template_id,)
+        ).fetchone()
+        if not row:
+            conn.close(); raise HTTPException(404, "Template introuvable")
+        if row["created_by"] == "system":
+            conn.close(); raise HTTPException(403, "Les templates système ne peuvent pas être supprimés")
+        conn.execute("DELETE FROM causal_graph_templates WHERE id = ?", (template_id,))
+        conn.commit(); conn.close()
+        return {"ok": True}
+    except HTTPException:
+        raise
+    except Exception as e:
+        logger.error(f"[causal_lab] delete_template {template_id}: {e}")
+        raise HTTPException(500, str(e))
+
+
 @router.get("/api/causal-lab/template/{template_id}")
 def get_template_detail(template_id: int):
     try: