refactor(modules): master/drop/migrations schema layout + harden install

Mirror core's DB layout at the module level: one master database.sql (full
current schema), one database_drop.sql (teardown), and forward-only
migrations/<semver>.sql deltas. ModuleMigrator gains install()/uninstall();
up() reads migrations/*.sql; down() removed.

- watch: database.sql (delete_missing folded into watch_folders),
  database_drop.sql, migrations/1.0.1.sql; drop 1.0.0.up/down.sql;
  getVersion() -> 1.0.1 (matches module.json).
- Move core migration 004_add_watch_delete_missing.sql into the watch module.
- installModule no longer wraps the DDL migration in a transaction: MySQL/MariaDB
  implicitly commit DDL, so the wrapping rollback() only masked the real SQL error.
- syncBundledModules retries a previously-failed install (skips only admin-disabled)
  so `console.php status` self-heals.

src/Modules/watch/WatchModule.php

@@ -60,7 +60,7 @@ class WatchModule extends BaseModule {
     }
 
     public function getVersion(): string {
-        return '1.0.0';
+        return '1.0.1';
     }
 
     /**

src/Modules/watch/database.sql

@@ -1,6 +1,8 @@
--- watch module schema — version 1.0.0 (up)
--- Owns: watch_categories, watch_folders, watch_logs, watch_refresh.
--- plex depends on watch and reuses watch_categories + watch_folders.
+-- watch module — master schema (current version)
+-- Full CREATE + seed for a fresh install. Must always reflect the LATEST schema
+-- (every migrations/<semver>.sql delta folded in), mirroring core's
+-- bin/install/database.sql. Owns: watch_categories, watch_folders, watch_logs,
+-- watch_refresh. plex depends on watch and reuses watch_categories + watch_folders.
 
 CREATE TABLE IF NOT EXISTS `watch_categories` (
   `id` int(11) NOT NULL AUTO_INCREMENT,
@@ -22,6 +24,7 @@ CREATE TABLE IF NOT EXISTS `watch_folders` (
   `bouquets` varchar(4096) COLLATE utf8_unicode_ci DEFAULT '[]',
   `last_run` int(32) DEFAULT '0',
   `active` int(1) DEFAULT '1',
+  `delete_missing` tinyint(1) DEFAULT '0',
   `disable_tmdb` int(1) DEFAULT '0',
   `ignore_no_match` int(1) DEFAULT '0',
   `auto_subtitles` int(1) DEFAULT '0',

src/Modules/watch/database_drop.sql

@@ -0,0 +1,7 @@
+-- watch module — teardown (single deletion file)
+-- Drops every table the module owns. Runs on uninstall. plex is uninstalled
+-- first (it depends on watch), so its data is already gone by the time these run.
+DROP TABLE IF EXISTS `watch_refresh`;
+DROP TABLE IF EXISTS `watch_logs`;
+DROP TABLE IF EXISTS `watch_folders`;
+DROP TABLE IF EXISTS `watch_categories`;

src/Modules/watch/migrations/1.0.0.down.sql

@@ -1,7 +0,0 @@
--- watch module schema — version 1.0.0 (down)
--- Reverses 1.0.0.up.sql. Plex is uninstalled first (it depends on watch),
--- so its data is already gone by the time these run.
-DROP TABLE IF EXISTS `watch_refresh`;
-DROP TABLE IF EXISTS `watch_logs`;
-DROP TABLE IF EXISTS `watch_folders`;
-DROP TABLE IF EXISTS `watch_categories`;

src/Modules/watch/migrations/1.0.1.sql

@@ -0,0 +1,7 @@
+-- watch module — version delta 1.0.1 (forward-only)
+-- Upgrades panels installed on an older schema: adds the delete_missing flag to
+-- watch_folders. Fresh installs get this column from database.sql (master) and
+-- never run this file. Idempotent, so it is a no-op where the column already
+-- exists (e.g. from the former core migration 004_add_watch_delete_missing.sql).
+ALTER TABLE `watch_folders`
+	ADD COLUMN IF NOT EXISTS `delete_missing` tinyint(1) DEFAULT 0 AFTER `active`;