Consolidate all paths to plugin flash dir, fix watchdog 7.3 triggers

- Move SCRIPTS_DIR/DATA_DIR/STATE_DIR from appdata to /boot/config/plugins/varaverk
- All state files now in STATE_DIR (no more /tmp or /boot/config root writes)
- Bootstrap: Gitea-first clone with GitHub fallback, no array dependency
- varaverk.cfg seeded with Gitea connection settings
- .gitignore: add State_Files/, varaverk.cfg, varaverk-*.txz
- Partnership/transcode/fallback scripts use STATE_DIR variables
- PHP config.php: DATA_DIR/STATE_DIR constants, VV_SETUP_STATE_FILE dynamic
- deploy.sh PROD_ROOT updated to plugin flash dir

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Plugin/unraid/include/watchdog.php

@@ -313,7 +313,7 @@ function vv_wd_all(): array {
     $currentHost = vv_detect_host();
     $tsPeers     = vv_pt_ts_peers();
     $masterRaw   = vv_read_conf_raw('master.conf');
-    $restartLog  = '/mnt/user/appdata/Varaverk/data/container_restart_history.db';
+    $restartLog  = DATA_DIR . '/container_restart_history.db';
 
     // Config thresholds from master.conf
     $cfg = [