Remove unused/misplaced dependencies (bcrypt, express-ws, ts-node-dev, @types/node)

- Remove bcrypt (^5.1.1) — no imports anywhere in source
- Remove express-ws (^5.0.2) — no imports (server uses REST + welshman)
- Remove ts-node-dev (^2.0.0) — deprecated, replaced by tsx, was in deps
- Remove @types/express-ws (dev) — no longer needed without express-ws
- Move @types/node (^22.18.1) from dependencies → devDependencies
- Prune bcrypt from pnpm.onlyBuiltDependencies list

All quality gates pass: tsc --noEmit, eslint, build, and 16 unit tests.

package.json

@@ -18,9 +18,9 @@
     "@eslint/js": "^9.35.0",
     "@types/better-sqlite3": "^7.6.13",
     "@types/express": "^5.0.3",
-    "@types/express-ws": "^3.0.5",
     "@types/mjml": "^4.7.4",
     "@types/mustache": "^4.2.6",
+    "@types/node": "^22.18.1",
     "@types/nodemailer": "^8.0.1",
     "@types/sanitize-html": "^2.16.0",
     "@types/ws": "^8.18.1",
@@ -34,7 +34,6 @@
     "vitest": "^5.0.0"
   },
   "dependencies": {
-    "@types/node": "^22.18.1",
     "@welshman/content": "^0.6.3",
     "@welshman/feeds": "^0.6.3",
     "@welshman/lib": "^0.6.3",
@@ -43,13 +42,11 @@
     "@welshman/signer": "^0.6.3",
     "@welshman/store": "^0.6.3",
     "@welshman/util": "^0.6.3",
-    "bcrypt": "^5.1.1",
     "cron": "^4.3.3",
     "cron-parser": "^5.3.1",
     "dotenv": "^16.6.1",
     "express": "^4.21.2",
     "express-rate-limit": "^7.5.1",
-    "express-ws": "^5.0.2",
     "localstorage-polyfill": "^1.0.1",
     "mjml": "^4.15.3",
     "mustache": "^4.2.0",
@@ -58,12 +55,10 @@
     "sanitize-html": "^2.17.0",
     "sqlite3": "^5.1.7",
     "succinct-async": "^1.0.4",
-    "ts-node-dev": "^2.0.0",
     "ws": "^8.18.3"
   },
   "pnpm": {
     "onlyBuiltDependencies": [
-      "bcrypt",
       "sqlite3"
     ]
   }