feat: Make Lucide icons globally available without Stimulus controller

- Replace unpkg CDN with npm package import in application.js
- Add global initialization for all Lucide icons on page load and Turbo events
- Remove dependency on lucide_controller.js and data-controller wrapper
- Icons now work anywhere with simple <i data-lucide="icon-name"></i> syntax
- Bundle size increased to include full icon set but removes controller overhead

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

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

package-lock.json

@@ -9,6 +9,7 @@
         "@hotwired/stimulus": "^3.2.2",
         "@hotwired/turbo-rails": "^8.0.13",
         "@radix-ui/react-slot": "^1.2.3",
+        "lucide": "^0.542.0",
         "react": "^18.3.1",
         "react-dom": "^18.3.1"
       },
@@ -2401,6 +2402,12 @@
         "node": ">=12"
       }
     },
+    "node_modules/lucide": {
+      "version": "0.542.0",
+      "resolved": "https://registry.npmjs.org/lucide/-/lucide-0.542.0.tgz",
+      "integrity": "sha512-+EtDSHjqg/nONgCfnjHCNd84OzbDjxR8ShnOf+oImlU+A8gqlptZ6pGrMCnhEDw8pVNQv3zu/L0eDvMzcc7nWA==",
+      "license": "ISC"
+    },
     "node_modules/magic-string": {
       "version": "0.30.17",
       "resolved": "https://registry.npmjs.org/magic-string/-/magic-string-0.30.17.tgz",