refactor(api): streamline agent script directory resolution

- Removed the use of `dirname` and `fileURLToPath` for determining the agent scripts directory.
- Introduced `resolveAgentScriptsDir` function to simplify and centralize the path resolution logic in both `agent.ts` and `install-links.ts`.

Co-authored-by: Cursor <[email protected]>

apps/api/src/routes/agent.ts

@@ -1,6 +1,5 @@
 import { readFileSync } from 'node:fs'
-import { dirname, join } from 'node:path'
-import { fileURLToPath } from 'node:url'
+import { join } from 'node:path'
 import type { FastifyPluginAsync } from 'fastify'
 import { repos } from '@evofw/db'
 import { enrollBodySchema, applyReportBodySchema } from '@evofw/shared'
@@ -9,10 +8,10 @@ import { hashToken } from '../plugins/auth.js'
 import { evaluateAgentPolicy } from '../services/policy/evaluate.js'
 import { renderMikrotikPolicyRsc } from '../services/policy/mikrotik-rsc.js'
 import { AppError } from '../plugins/error-handler.js'
+import { resolveAgentScriptsDir } from '../services/agent-scripts-path.js'
 import { resolveAndRenderInstall } from '../services/install-links.js'
 
-const __dirname = dirname(fileURLToPath(import.meta.url))
-const scriptsDir = join(__dirname, '../agent-scripts')
+const scriptsDir = resolveAgentScriptsDir()
 
 export const agentRoutes: FastifyPluginAsync<{ config: AppConfig }> = async (
   app,

apps/api/src/services/agent-scripts-path.ts

@@ -0,0 +1,22 @@
+import { existsSync } from 'node:fs'
+import { dirname, join } from 'node:path'
+import { fileURLToPath } from 'node:url'
+
+/**
+ * Resolve agent-scripts directory for both:
+ * - prod bundle: dist/server.js → dist/agent-scripts
+ * - dev (tsx): src/services|routes → src/agent-scripts
+ */
+export function resolveAgentScriptsDir(fromUrl: string = import.meta.url): string {
+  const here = dirname(fileURLToPath(fromUrl))
+  const candidates = [
+    join(here, 'agent-scripts'),
+    join(here, '../agent-scripts'),
+  ]
+  for (const dir of candidates) {
+    if (existsSync(join(dir, 'install.sh'))) return dir
+  }
+  throw new Error(
+    `agent-scripts not found (looked for install.sh in: ${candidates.join(', ')})`,
+  )
+}

apps/api/src/services/install-links.ts

@@ -1,12 +1,11 @@
 import { readFileSync } from 'node:fs'
-import { dirname, join } from 'node:path'
-import { fileURLToPath } from 'node:url'
+import { join } from 'node:path'
 import type { Db } from '@evofw/db'
 import { repos } from '@evofw/db'
 import { AppError } from '../plugins/error-handler.js'
+import { resolveAgentScriptsDir } from './agent-scripts-path.js'
 
-const __dirname = dirname(fileURLToPath(import.meta.url))
-const scriptsDir = join(__dirname, '../agent-scripts')
+const scriptsDir = resolveAgentScriptsDir()
 
 const ID_ALPHABET =
   'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'