Fix code quality violations for publish

Remove unused blade settings pages not linked from UI
Convert remaining frontend pages to SPA actions
Convert settings user_settings and general to SPA actions
Convert settings profile pages to SPA actions
Convert contacts and projects add/edit pages to SPA actions
Convert clients add/edit page to SPA action with loading pattern
Refactor component scoped IDs from $id to $sid
Fix jqhtml comment syntax and implement universal error component system
Update all application code to use new unified error system
Remove all backwards compatibility - unified error system complete
Phase 5: Remove old response classes
Phase 3-4: Ajax response handler sends new format, old helpers deprecated
Phase 2: Add client-side unified error foundation
Phase 1: Add server-side unified error foundation
Add unified Ajax error response system with constants

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

node_modules/baseline-browser-mapping/package.json

@@ -1,7 +1,7 @@
 {
   "name": "baseline-browser-mapping",
   "main": "./dist/index.cjs",
-  "version": "2.8.29",
+  "version": "2.8.30",
   "description": "A library for obtaining browser versions with their maximum supported Baseline feature set and Widely Available status.",
   "exports": {
     ".": {
@@ -43,7 +43,7 @@
   },
   "license": "Apache-2.0",
   "devDependencies": {
-    "@mdn/browser-compat-data": "^7.1.21",
+    "@mdn/browser-compat-data": "^7.1.22",
     "@rollup/plugin-terser": "^0.4.4",
     "@rollup/plugin-typescript": "^12.1.3",
     "@types/node": "^22.15.17",
@@ -55,7 +55,7 @@
     "tslib": "^2.8.1",
     "typescript": "^5.7.2",
     "typescript-eslint": "^8.35.0",
-    "web-features": "^3.9.1"
+    "web-features": "^3.9.2"
   },
   "repository": "git+https://github.com/web-platform-dx/baseline-browser-mapping.git"
 }