Revert "merge: integrate extension auto-update"

This reverts commit 322475860a, reversing
changes made to f52d9d7413.

control-plane/migrations/019_extension_host_updates.sql

@@ -1,77 +0,0 @@
--- Bind browser accounts to Alibaba ECS Windows hosts and persist signed-in
--- browser extension releases/update orchestration. The updater remains part of
--- the control-plane process; target hosts only run one-shot Cloud Assistant
--- commands after every browser worker on that host reports an idle state.
-
-ALTER TABLE users
-  ADD COLUMN IF NOT EXISTS extension_ecs_region_id text,
-  ADD COLUMN IF NOT EXISTS extension_ecs_instance_id text;
-
-ALTER TABLE users
-  DROP CONSTRAINT IF EXISTS users_extension_ecs_binding_pair_check;
-
-ALTER TABLE users
-  ADD CONSTRAINT users_extension_ecs_binding_pair_check
-  CHECK (
-    (extension_ecs_region_id IS NULL AND extension_ecs_instance_id IS NULL)
-    OR (
-      extension_ecs_region_id ~ '^[a-z0-9][a-z0-9-]{0,63}$'
-      AND extension_ecs_instance_id ~ '^i-[A-Za-z0-9]{6,64}$'
-    )
-  );
-
-CREATE INDEX IF NOT EXISTS users_extension_ecs_host_idx
-  ON users (organization_id, extension_ecs_region_id, extension_ecs_instance_id)
-  WHERE extension_ecs_region_id IS NOT NULL AND extension_ecs_instance_id IS NOT NULL;
-
-CREATE TABLE IF NOT EXISTS extension_releases (
-  id uuid PRIMARY KEY DEFAULT gen_random_uuid(),
-  organization_id uuid NOT NULL REFERENCES organizations(id),
-  version text NOT NULL,
-  object_key text NOT NULL,
-  sha256 text NOT NULL,
-  byte_size integer NOT NULL,
-  extension_manifest jsonb NOT NULL,
-  is_active boolean NOT NULL DEFAULT false,
-  published_by uuid NOT NULL REFERENCES users(id),
-  created_at timestamptz NOT NULL DEFAULT now(),
-  UNIQUE (organization_id, version),
-  UNIQUE (organization_id, object_key),
-  CHECK (version ~ '^[0-9]+\.[0-9]+\.[0-9]+(\.[0-9]+)?$'),
-  CHECK (sha256 ~ '^[a-f0-9]{64}$'),
-  CHECK (byte_size BETWEEN 1 AND 50000000),
-  CHECK (char_length(object_key) BETWEEN 1 AND 500)
-);
-
-CREATE UNIQUE INDEX IF NOT EXISTS extension_releases_one_active_idx
-  ON extension_releases (organization_id)
-  WHERE is_active = true;
-
-CREATE INDEX IF NOT EXISTS extension_releases_created_idx
-  ON extension_releases (organization_id, created_at DESC);
-
-CREATE TABLE IF NOT EXISTS extension_host_updates (
-  organization_id uuid NOT NULL REFERENCES organizations(id),
-  ecs_region_id text NOT NULL,
-  ecs_instance_id text NOT NULL,
-  release_id uuid NOT NULL REFERENCES extension_releases(id),
-  status text NOT NULL,
-  attempt_count integer NOT NULL DEFAULT 0,
-  invocation_id text,
-  error_code text,
-  error_message text,
-  started_at timestamptz,
-  deployed_at timestamptz,
-  verified_at timestamptz,
-  updated_at timestamptz NOT NULL DEFAULT now(),
-  PRIMARY KEY (organization_id, ecs_region_id, ecs_instance_id),
-  CHECK (status IN ('waiting_for_idle', 'running', 'deployed', 'verified', 'failed')),
-  CHECK (attempt_count BETWEEN 0 AND 3),
-  CHECK (ecs_region_id ~ '^[a-z0-9][a-z0-9-]{0,63}$'),
-  CHECK (ecs_instance_id ~ '^i-[A-Za-z0-9]{6,64}$'),
-  CHECK (error_code IS NULL OR char_length(error_code) <= 120),
-  CHECK (error_message IS NULL OR char_length(error_message) <= 2000)
-);
-
-CREATE INDEX IF NOT EXISTS extension_host_updates_release_status_idx
-  ON extension_host_updates (organization_id, release_id, status, updated_at DESC);