fix: add days>0 guard and limit param to stale/feedback endpoints

GET /api/cases/stale?days=N — returns cases not updated in N days (default 3)
  that are not in 'final' or 'new' status, with days_stale count.
GET /api/chair-feedback/weekly-summary?days=N — returns chair feedback from
  the last N days (default 7) as a Hebrew bullet-list summary for CEO agent.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

web/app.py

@@ -1135,6 +1135,36 @@ async def list_cases(
     return result
 
 
+@app.get("/api/cases/stale")
+async def api_stale_cases(days: int = 3):
+    """Return cases that haven't been updated in N days and are not in 'final' or 'new' status."""
+    if days <= 0:
+        return {"cases": [], "total": 0}
+    pool = await db.get_pool()
+    async with pool.acquire() as conn:
+        rows = await conn.fetch(
+            """
+            SELECT case_number, title, status,
+                   EXTRACT(DAY FROM (now() - updated_at))::int AS days_stale
+            FROM cases
+            WHERE status NOT IN ('final', 'new')
+              AND updated_at < now() - make_interval(days => $1)
+            ORDER BY updated_at ASC  -- oldest stale first (longest overdue = highest priority)
+            """,
+            days,
+        )
+    cases = [
+        {
+            "case_number": r["case_number"],
+            "title": r["title"],
+            "status": r["status"],
+            "days_stale": r["days_stale"],
+        }
+        for r in rows
+    ]
+    return {"cases": cases, "total": len(cases)}
+
+
 @app.post("/api/cases/{case_number}/archive")
 async def api_archive_case(case_number: str):
     """Move a case to the archive. Also archives the matching Paperclip project."""
@@ -4015,6 +4045,34 @@ async def api_resolve_feedback(feedback_id: str, body: dict):
     return {"status": "resolved"}
 
 
+@app.get("/api/chair-feedback/weekly-summary")
+async def api_chair_feedback_weekly_summary(days: int = 7, limit: int = 100):
+    """Return chair feedback from the last N days as a text summary for the CEO agent."""
+    if days <= 0:
+        return {"summary": "", "entry_count": 0}
+    pool = await db.get_pool()
+    async with pool.acquire() as conn:
+        rows = await conn.fetch(
+            """
+            SELECT cf.feedback_text, c.case_number, c.title
+            FROM chair_feedback cf
+            LEFT JOIN cases c ON c.id = cf.case_id
+            WHERE cf.created_at >= now() - make_interval(days => $1)
+            ORDER BY cf.created_at DESC
+            LIMIT $2
+            """,
+            days,
+            limit,
+        )
+    if not rows:
+        return {"summary": "", "entry_count": 0}
+    lines = [
+        f"- תיק {r['case_number'] or '—'} ({r['title'] or '—'}): {r['feedback_text']}"
+        for r in rows
+    ]
+    return {"summary": "\n".join(lines), "entry_count": len(rows)}
+
+
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