feat: integrate creator hub douyin workflows

internal/creator/migrations/027_creator_listener_state.sql

@@ -0,0 +1,14 @@
+CREATE TABLE IF NOT EXISTS creator_listener_state (
+    account_id text PRIMARY KEY REFERENCES social_account (
+        id
+    ) ON DELETE CASCADE,
+    platform text NOT NULL CHECK (platform IN ('douyin', 'xiaohongshu')),
+    generation text NOT NULL DEFAULT '',
+    status text NOT NULL CHECK (
+        status IN ('starting', 'ready', 'gap', 'stopped', 'error')
+    ),
+    boundary_at timestamptz,
+    last_delivery_id text NOT NULL DEFAULT '',
+    reason text NOT NULL DEFAULT '',
+    updated_at timestamptz NOT NULL DEFAULT now()
+);

internal/creator/migrations/028_creator_event_message_type.sql

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+ALTER TABLE creator_event
+    ADD COLUMN IF NOT EXISTS message_type text NOT NULL DEFAULT 'text';
+
+ALTER TABLE creator_event
+    DROP CONSTRAINT IF EXISTS creator_event_message_type_check;
+
+ALTER TABLE creator_event
+    ADD CONSTRAINT creator_event_message_type_check
+    CHECK (message_type IN ('text', 'image', 'voice', 'video', 'sticker', 'non_text'));

internal/creator/migrations/029_creator_source_sync_lease.sql

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+CREATE TABLE IF NOT EXISTS creator_source_sync_lease (
+    source_type text NOT NULL CHECK (source_type IN ('owned', 'competitor')),
+    source_id text NOT NULL,
+    lease_token text NOT NULL,
+    lease_until timestamptz NOT NULL,
+    updated_at timestamptz NOT NULL DEFAULT now(),
+    PRIMARY KEY (source_type, source_id)
+);

internal/creator/migrations/030_creator_event_gateway_time.sql

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+ALTER TABLE creator_event
+    ADD COLUMN IF NOT EXISTS gateway_received_at timestamptz;