Remove Tailwind and simplify CSS build process

- Remove Tailwind CSS and related dependencies (tailwindcss, @tailwindcss/cli, bun-plugin-tailwind)
- Remove unused dependencies (lenis, @paper-design/shaders, three)
- Convert @theme variables to CSS custom properties in :root
- Add minimal CSS reset for browser consistency
- Update server to serve /css/* and /js/* routes directly
- Fix conflicting CSS rules that broke commands section layout
- Delete bunfig.toml (no longer needed without Tailwind plugin)

The site now uses native CSS imports via Bun's built-in bundler,
eliminating the need for separate Tailwind compilation step.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

package.json

@@ -1,16 +1,11 @@
 {
   "name": "impeccable",
   "version": "1.0.0",
-  "description": "Cross-provider design skills and commands for LLM-powered development tools",
-  "type": "module",
-  "scripts": {
-    "build": "bun run scripts/build.js",
-    "clean": "rm -rf dist",
-    "rebuild": "bun run clean && bun run build",
-    "dev": "bun run server/index.js",
-    "start": "bun --production run server/index.js",
-    "test": "bun test"
+  "author": "Paul Bakaus",
+  "dependencies": {
+    "motion": "^12.23.26"
   },
+  "description": "Cross-provider design skills and commands for LLM-powered development tools",
   "keywords": [
     "cursor",
     "claude",
@@ -20,17 +15,14 @@
     "frontend",
     "ux"
   ],
-  "author": "Paul Bakaus",
   "license": "SEE LICENSE FILE",
-  "devDependencies": {
-    "@tailwindcss/cli": "^4.1.18",
-    "bun-plugin-tailwind": "^0.1.2"
+  "scripts": {
+    "build": "bun run scripts/build.js",
+    "clean": "rm -rf dist",
+    "rebuild": "bun run clean && bun run build",
+    "dev": "bun run server/index.js",
+    "start": "bun --production run server/index.js",
+    "test": "bun test"
   },
-  "dependencies": {
-    "@paper-design/shaders": "^0.0.68",
-    "lenis": "^1.3.16",
-    "motion": "^12.23.26",
-    "tailwindcss": "^4.1.18",
-    "three": "^0.182.0"
-  }
+  "type": "module"
 }