paperclip: assign CEO on issue creation so wakeup gate accepts run

Paperclip heartbeat staleness gate (heartbeat.js evaluateQueuedRunStaleness)
cancels queued runs when issue.assigneeAgentId !== run.agentId, with error
"issue assignee changed before the queued run could start". Older Paperclip
versions auto-assigned on wakeup; the current version does not, so issues
created with NULL assignee silently never run.

Set assignee_agent_id to the company's CEO at INSERT time. Affects both the
project setup issue and the "התחל תהליך ניסוח" workflow issue.

web/paperclip_client.py

@@ -268,13 +268,19 @@ async def _create_issue(
     issue_number = row["issue_counter"]
     identifier = f"{prefix}-{issue_number}"
 
+    # Assign to the company's CEO so Paperclip's wakeup gate
+    # (heartbeat staleness check) accepts the wakeup. Without this,
+    # the run is cancelled with "issue assignee changed before the
+    # queued run could start" and the agent never starts.
+    ceo_agent_id = CEO_AGENTS.get(company_id, CEO_AGENT_ID)
+
     await conn.execute(
-        """INSERT INTO issues (id, company_id, project_id, title, description, status, priority, issue_number, identifier)
-           VALUES ($1, $2::uuid, $3::uuid, $4, $5, 'todo', 'medium', $6, $7)""",
+        """INSERT INTO issues (id, company_id, project_id, title, description, status, priority, issue_number, identifier, assignee_agent_id)
+           VALUES ($1, $2::uuid, $3::uuid, $4, $5, 'todo', 'medium', $6, $7, $8::uuid)""",
         issue_id, company_id, project_id,
         f"[ערר {case_number}] {title}"[:200],
         f"תיק ערר {case_number}\nנוצר אוטומטית מממשק העלאת מסמכים",
-        issue_number, identifier,
+        issue_number, identifier, ceo_agent_id,
     )
 
     logger.info("Created Paperclip issue %s: [ערר %s] %s", identifier, case_number, title)