feat: 15 logic component Workers + cypher-executor auth/credentials routing

Component Workers:
- Deploys if_control, switch, filter, merge, try_catch, wait, set,
  array_ops, string_ops, number_ops, date_ops, validate_json,
  ai_transform_compile, ai_transform_run, foreach_control as
  independent Workers, backing cypher-executor's SVC_* service
  bindings (fast internal RPC for logic components).

cypher-executor routing:
- New routes: /auth (recipe resolution), /credentials (CRUD),
  /webhooks/named (user-friendly alias for cmp_/rec_ hashes).
- auth-recipe-seeds.ts: 20 pre-built platform auth recipes
  (Google Sheets, Gmail, Telegram, etc.) seeded into RECIPES KV.
- graph-executor + cypher-handlers + search-nodes updated for
  the new resolution chain.
- scripts/seed-auth-recipes.ts: one-shot tool to push seeds to KV.
- wrangler.toml: 15 SVC_* bindings wired to the new logic Workers.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

cypher-executor/src/routes/register.ts

@@ -39,6 +39,7 @@ registerRouter.post('/register', async (c) => {
   return c.json({
     success: true,
     api_key: apiKey,
+    encryption_key: encryptionKey,  // 用戶需要此 key 才能加密上傳 credential
     email,
     message: 'API Key 已發放，請妥善保存。相同 email 永遠得到相同的 Key。',
   });