fix: A21 phase 2c — 190 routes hors loop, 86 % total (v7.26.0)

4 passes (283 → 93 routes async sur 667 = 86 % hors loop, avant 61 %) :

A. RACINE AUTH — `get_current_user` (auth/session.py) était `async def`
   SANS aucun await (cookie decode = synchrone) ; idem ses clones :
   `agent._current_user_id/_workspace_id/_current_admin` (34 sites) et
   `sso._require_admin` (corps 0 await, 6 sites) → `def` +
   47 `await` supprimés. Piège : 3 call sites passaient par l'alias `gcu`
   (grep littéral aveugle) — 8 tests en échec → corrigés.

B. Re-scan : 19 routes devenues SANS await → `def` (agent 8, sso 5,
   web_clipper 3, projects 2, auth 1…).

C/D. 155 routes dont les seuls awaits = `request.json()` / événements :
   - try/except `body = {}` → `Body(default={})` (même tolérance)
   - try/except `raise HTTPException(400)` → `Body(...)` REQUIS
     (422 FastAPI — aucun test ne couvrait le 400)
   - forme conditionnelle `request.json() if content-type else {}`
     (54 sites) → défaut `{}` (sans corps = `{}` dans les 2 cas)
   - `await fire_*` → `run_event_sync(...)` ; imports `Body` /
     `run_event_sync` ajoutés aux routers convertis

Reste async (93, justifié) : form/upload/file (22), réseau gitea/llm/oidc,
`_json_body` (9), 2 JSON inline en argument, 1 fallback logique
(capture_frontend_error), 1 lecture conditionnelle (web_clipper), mixtes.

suite **1089/1089** · ruff OK · docs à jour

app/routers/automations.py

@@ -4,7 +4,7 @@ from __future__ import annotations
 import json
 import logging
 
-from fastapi import APIRouter, Depends, HTTPException, Request
+from fastapi import APIRouter, Body, Depends, HTTPException, Request
 
 from app.auth.session import SessionManager
 from app.db import get_conn
@@ -79,8 +79,7 @@ def list_automations(request: Request):
 
 
 @router.post("/workspace/automations")
-async def create_automation(request: Request):
-    body = await request.json() if request.headers.get("content-type") else {}
+def create_automation(request: Request, body: dict = Body(default={})):
     _validate_payload(body)
     user = _current_user(request)
     by = user["id"]
@@ -118,8 +117,7 @@ def get_automation(request: Request, auto_id: int):
 
 
 @router.put("/workspace/automations/{auto_id}")
-async def update_automation(request: Request, auto_id: int):
-    body = await request.json() if request.headers.get("content-type") else {}
+def update_automation(request: Request, auto_id: int, body: dict = Body(default={})):
     _validate_payload(body)
     with get_conn() as conn:
         row = conn.execute("SELECT id FROM automations WHERE id=?", (auto_id,)).fetchone()
@@ -233,11 +231,10 @@ def list_steps(request: Request, auto_id: int):
 
 
 @router.post("/workspace/automations/{auto_id}/steps")
-async def create_step(request: Request, auto_id: int):
+def create_step(request: Request, auto_id: int, body: dict = Body(default={})):
     _require_session(request)
     if _get_auto(auto_id) is None:
         return _auto_404()
-    body = await request.json() if request.headers.get("content-type") else {}
     kind = body.get("kind", "")
     config = body.get("config", {}) or {}
     validate_step(kind, config)
@@ -256,9 +253,8 @@ async def create_step(request: Request, auto_id: int):
 
 
 @router.put("/workspace/automations/steps/{step_id}")
-async def update_step(request: Request, step_id: int):
+def update_step(request: Request, step_id: int, body: dict = Body(default={})):
     _require_session(request)
-    body = await request.json() if request.headers.get("content-type") else {}
     with get_conn() as conn:
         row = conn.execute("SELECT * FROM automation_steps WHERE id=?", (step_id,)).fetchone()
         if not row:
@@ -288,12 +284,11 @@ def delete_step(request: Request, step_id: int):
 
 
 @router.put("/workspace/automations/{auto_id}/mode")
-async def set_trigger_mode(request: Request, auto_id: int):
+def set_trigger_mode(request: Request, auto_id: int, body: dict = Body(default={})):
     """Set multi-trigger mode: any (default) or all (5-minute window)."""
     _require_session(request)
     if _get_auto(auto_id) is None:
         return _auto_404()
-    body = await request.json() if request.headers.get("content-type") else {}
     mode = (body.get("mode") or "any").lower()
     if mode not in ("any", "all"):
         raise HTTPException(status_code=400, detail="mode must be any or all")