refactor: clean up duplicate imports and dead code

- Merge type and value imports from the same module into single imports
- Remove dead import-badges action (flow uses /api/admin/import/badges)
- Remove unused babel-plugin-react-compiler devDependency
- Remove stray test.txt file
- Update knip config: track css imports, drop redundant ignore entries
- Update contract test to drop obsolete dead-action assertion

package.json

@@ -75,7 +75,6 @@
 		"@types/react": "19.2.18",
 		"@types/react-dom": "19.2.4",
 		"@vitest/coverage-v8": "4.1.10",
-		"babel-plugin-react-compiler": "^1.0.0",
 		"dotenv": "^17.4.2",
 		"drizzle-kit": "^0.31.10",
 		"husky": "^9.1.7",