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>

common.sh

@@ -1246,11 +1246,14 @@ get_rsync_opts() {
 
 LOCK_DIR="/tmp/unraid_locks"
 
-# Ensure DATA_DIR exists — created here so every script that sources common.sh
-# can safely write to it without checking first
+# Ensure DATA_DIR and STATE_DIR exist — created here so every script that sources common.sh
+# can safely write to either without checking first.
 if [[ -n "${DATA_DIR:-}" ]] && [[ ! -d "$DATA_DIR" ]]; then
     mkdir -p "$DATA_DIR" 2>/dev/null || true
 fi
+if [[ -n "${STATE_DIR:-}" ]] && [[ ! -d "$STATE_DIR" ]]; then
+    mkdir -p "$STATE_DIR" 2>/dev/null || true
+fi
 
 RSYNC_COUNT_FILE="$LOCK_DIR/rsync_active_count"
 RSYNC_MAX_CONCURRENT=3