fix: add APP_VERSION fallback and HOST bind address env var (#952 #953) (#955)

* fix: add APP_VERSION fallback and HOST bind env var (#952 #953)

- Read package.json version when APP_VERSION env var is absent so the
  startup banner shows the correct version for source/Proxmox installs
- Add HOST env var to control the HTTP bind address; only applied when
  set so Docker deployments are unaffected (bind-all-interfaces default)
- Parse PORT as Number() so malformed values like '10.0.0.72:3001' fall
  back to 3001 instead of silently misbehaving
- Document HOST in .env.example, Environment-Variables wiki, and
  Install-Proxmox wiki with explicit warnings against using it in Docker

* fix: correct package.json path in APP_VERSION fallback

index.ts sits at server/src/ — one level up reaches server/package.json,
not two (../../ overshot to the repo root where no package.json exists).

server/src/db/migrations.ts

@@ -2222,6 +2222,13 @@ function runMigrations(db: Database.Database): void {
         db.prepare("INSERT OR REPLACE INTO app_settings (key, value) VALUES ('whitespace_migration_collision', 'true')").run();
       }
     },
+    () => {
+      db.exec(`CREATE TABLE IF NOT EXISTS schema_version_new (id INTEGER PRIMARY KEY AUTOINCREMENT,version INTEGER NOT NULL)`)
+      db.exec(`INSERT INTO schema_version_new (version) SELECT version FROM schema_version`)
+      db.exec(`DROP TABLE schema_version`)
+      db.exec(`ALTER TABLE schema_version_new RENAME TO schema_version`)
+      db.exec(`UPDATE app_settings SET value = '${process.env.APP_VERSION || '3.0.15'}' WHERE key = 'app_version'`);
+    },
   ];
 
   if (currentVersion < migrations.length) {

server/src/index.ts

@@ -20,8 +20,11 @@ const app = createApp();
 
 import * as scheduler from './scheduler';
 
-const PORT = process.env.PORT || 3001;
-const server = app.listen(PORT, () => {
+const PORT = Number(process.env.PORT) || 3001;
+const HOST = process.env.HOST;
+const APP_VERSION: string = process.env.APP_VERSION || (require('../package.json') as { version: string }).version;
+
+const onListen = () => {
   const { logInfo: sLogInfo, logWarn: sLogWarn } = require('./services/auditLog');
   const LOG_LVL = (process.env.LOG_LEVEL || 'info').toLowerCase();
   const tz = process.env.TZ || Intl.DateTimeFormat().resolvedOptions().timeZone || 'UTC';
@@ -29,7 +32,8 @@ const server = app.listen(PORT, () => {
   const banner = [
     '──────────────────────────────────────',
     '  TREK API started',
-    `  Version      ${process.env.APP_VERSION}`,
+    `  Version      ${APP_VERSION}`,
+    ...(HOST ? [`  Host:        ${HOST}`] : []),
     `  Port:        ${PORT}`,
     `  Environment: ${process.env.NODE_ENV?.toLowerCase() || 'development'}`,
     `  Timezone:    ${tz}`,
@@ -57,7 +61,11 @@ const server = app.listen(PORT, () => {
   import('./websocket').then(({ setupWebSocket }) => {
     setupWebSocket(server);
   });
-});
+};
+
+const server = HOST
+  ? app.listen(PORT, HOST, onListen)
+  : app.listen(PORT, onListen);
 
 // Graceful shutdown
 function shutdown(signal: string): void {