chore: bump hono to 4.12.21+ and ignore versioned db backups

Add npm override forcing hono>=4.12.21 to resolve 4 Dependabot alerts
(transitive via shadcn CLI, dev-only). Add *.db.back-* to .gitignore
to exclude versioned database backups.

ha-relevant: no

.gitignore

@@ -46,6 +46,7 @@ htmlcov/
 *.db-shm
 *.db-wal
 *.db.back
+*.db.back-*
 
 # Docker
 .docker/

frontend/package-lock.json

@@ -6196,9 +6196,9 @@
       }
     },
     "node_modules/hono": {
-      "version": "4.12.18",
-      "resolved": "https://registry.npmjs.org/hono/-/hono-4.12.18.tgz",
-      "integrity": "sha512-RWzP96k/yv0PQfyXnWjs6zot20TqfpfsNXhOnev8d1InAxubW93L11/oNUc3tQqn2G0bSdAOBpX+2uDFHV7kdQ==",
+      "version": "4.12.25",
+      "resolved": "https://registry.npmjs.org/hono/-/hono-4.12.25.tgz",
+      "integrity": "sha512-2NFaIyNVgJmBs/ecmtGzlmluTFs5cHEWGTdu0t1HBwYzoGXOL5nUQBRMXsXWla5i4KkG//QMzVP88m1+I3fdAQ==",
       "license": "MIT",
       "engines": {
         "node": ">=16.9.0"

frontend/package.json

@@ -37,6 +37,9 @@
     "tw-animate-css": "^1.4.0",
     "zustand": "^5.0.11"
   },
+  "overrides": {
+    "hono": "^4.12.21"
+  },
   "devDependencies": {
     "@eslint/js": "^9.39.1",
     "@tailwindcss/vite": "^4.2.1",