perf(hooks): cache DDEV project detection

- Add _ddevProjectCache to avoid repeated filesystem/which() checks
- Add resetDdevCache() function for test isolation
- Call resetDdevCache() in test beforeEach hooks

Author: TerrorSquad

booster/.husky/shared/core.ts

@@ -123,27 +123,49 @@ export function isSkipped(name: string): boolean {
   return process.env[skipEnvVar] === '1' || process.env[skipEnvVar] === 'true'
 }
 
+// Cache for DDEV detection to avoid repeated filesystem checks
+let _ddevProjectCache: boolean | null = null
+
 /**
  * Check if the current project is a DDEV project
+ * Result is cached after first call for performance.
  * @returns True if .ddev/config.yaml exists and ddev binary is available
  */
 export async function isDdevProject(): Promise<boolean> {
+  // Return cached result if available
+  if (_ddevProjectCache !== null) {
+    return _ddevProjectCache
+  }
+
   // Allow explicit disable via env var
   if (process.env.DDEV_PHP === 'false' || process.env.DDEV_PHP === '0') {
+    _ddevProjectCache = false
     return false
   }
 
   const hasConfig = await fs.pathExists('.ddev/config.yaml')
-  if (!hasConfig) return false
+  if (!hasConfig) {
+    _ddevProjectCache = false
+    return false
+  }
 
   try {
     await which('ddev')
+    _ddevProjectCache = true
     return true
   } catch {
+    _ddevProjectCache = false
     return false
   }
 }
 
+/**
+ * Reset DDEV detection cache (useful for testing)
+ */
+export function resetDdevCache(): void {
+  _ddevProjectCache = null
+}
+
 /**
  * Get the DDEV project name from .ddev/config.yaml
  * @returns The project name or null if not found

booster/.husky/tests/shared/core.test.ts

@@ -5,6 +5,7 @@ import {
   formatDuration,
   isSkipped,
   isDdevProject,
+  resetDdevCache,
   exec,
   ensureMutagenSync
 } from '../../shared/core'
@@ -42,6 +43,7 @@ describe('core.ts', () => {
   beforeEach(() => {
     vi.clearAllMocks()
     vi.resetModules()
+    resetDdevCache() // Reset DDEV cache between tests
     process.env = { ...process.env } // Clone env
     delete process.env.DDEV_PHP // Ensure this doesn't interfere
   })