feat(scheduler): add scheduled jobs with channel-aware delivery

Introduce persisted cron/interval jobs, gateway scheduler loop, worker turns,
and admin CRUD/edit UI. Route proactive reminders via the originating chat
channel (WhatsApp vs WeChat), harden Weixin outbound with durable queue and
PG-compatible polling, and fix chat UI to show each scheduled reminder separately.

Co-authored-by: Cursor <cursoragent@cursor.com>

assistant_migrations/versions/002_scheduled_jobs.py

@@ -0,0 +1,80 @@
+"""Add scheduled_job tables for PostgreSQL deployments."""
+
+from __future__ import annotations
+
+from alembic import op
+from sqlalchemy import text
+
+revision = "002_scheduled_jobs"
+down_revision = "001_assistant_pg_initial"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    bind = op.get_bind()
+    if bind.dialect.name != "postgresql":
+        return
+    op.execute(
+        text(
+            """
+            CREATE TABLE IF NOT EXISTS scheduled_job (
+                id TEXT PRIMARY KEY,
+                tenant_id TEXT NOT NULL,
+                name TEXT NOT NULL,
+                description TEXT NOT NULL DEFAULT '',
+                status TEXT NOT NULL DEFAULT 'active',
+                schedule_kind TEXT NOT NULL,
+                schedule_expr TEXT NOT NULL,
+                timezone TEXT NOT NULL DEFAULT 'Asia/Shanghai',
+                prompt_text TEXT NOT NULL,
+                interaction_mode TEXT NOT NULL DEFAULT 'expert',
+                specialist TEXT NOT NULL DEFAULT 'generalist',
+                lang TEXT NOT NULL DEFAULT 'zh',
+                delivery_json TEXT NOT NULL DEFAULT '{}',
+                source_session_id TEXT,
+                created_by_user_id TEXT NOT NULL DEFAULT '',
+                source TEXT NOT NULL DEFAULT 'admin',
+                next_run_at TEXT,
+                last_run_at TEXT,
+                last_run_status TEXT NOT NULL DEFAULT '',
+                created_at TEXT NOT NULL,
+                updated_at TEXT NOT NULL
+            )
+            """
+        )
+    )
+    op.execute(text("CREATE INDEX IF NOT EXISTS idx_scheduled_job_due ON scheduled_job(status, next_run_at)"))
+    op.execute(
+        text(
+            """
+            CREATE TABLE IF NOT EXISTS scheduled_job_run (
+                id TEXT PRIMARY KEY,
+                job_id TEXT NOT NULL REFERENCES scheduled_job(id) ON DELETE CASCADE,
+                tenant_id TEXT NOT NULL,
+                status TEXT NOT NULL,
+                scheduled_at TEXT NOT NULL,
+                started_at TEXT,
+                finished_at TEXT,
+                session_id TEXT,
+                oclaw_task_id TEXT,
+                run_id TEXT,
+                reply_text TEXT NOT NULL DEFAULT '',
+                delivery_status_json TEXT NOT NULL DEFAULT '{}',
+                error TEXT NOT NULL DEFAULT '',
+                created_at TEXT NOT NULL
+            )
+            """
+        )
+    )
+    op.execute(
+        text("CREATE INDEX IF NOT EXISTS idx_scheduled_job_run_job ON scheduled_job_run(job_id, created_at DESC)")
+    )
+
+
+def downgrade() -> None:
+    bind = op.get_bind()
+    if bind.dialect.name != "postgresql":
+        return
+    op.execute(text("DROP TABLE IF EXISTS scheduled_job_run"))
+    op.execute(text("DROP TABLE IF EXISTS scheduled_job"))