fix(cache): green the full gate — redisVectorStore typecheck + env-doc-sync

- open-sse/services/cache/redisVectorStore.ts: RedisLike was missing the
  optional disconnect() method that close() already calls as an ioredis
  fallback when quit() isn't available — 2 TS2339 errors under
  check:open-sse-typecheck.
- scripts/check/check-env-doc-sync.mjs: allowlist LEMONADE_URL/KEY/MODEL,
  same class as the existing NVIDIA_BASE_URL/MODEL entry — they only
  configure the gated tests/integration/semantic-cache-lemonade.test.ts
  live test against an operator's local Lemonade server (self-skips when
  unreachable), never OmniRoute runtime config.

Co-authored-by: diegosouzapw <8016841+diegosouzapw@users.noreply.github.com>

open-sse/services/cache/redisVectorStore.ts

@@ -31,6 +31,7 @@ export interface RedisLike {
   keys(pattern: string): Promise<string[]>;
   call?(command: string, ...args: unknown[]): Promise<unknown>;
   quit?(): Promise<string>;
+  disconnect?(): void;
 }
 
 export interface RedisVectorStoreOptions {

scripts/check/check-env-doc-sync.mjs

@@ -213,6 +213,12 @@ const IGNORE_FROM_CODE = new Set([
   // NVIDIA diagnostic/test helpers used only by ad-hoc scripts.
   "NVIDIA_BASE_URL",
   "NVIDIA_MODEL",
+  // Lemonade embedding-provider integration test (tests/integration/semantic-cache-lemonade.test.ts)
+  // — points the gated live test at an operator's local Lemonade server; the test skips itself
+  // when the endpoint is unreachable, never OmniRoute runtime config.
+  "LEMONADE_URL",
+  "LEMONADE_KEY",
+  "LEMONADE_MODEL",
   // Discord integration ad-hoc script (scripts/ad-hoc/mesh-send.mjs) —
   // operator-supplied bot credentials, not user-facing OmniRoute config.
   "BOT_TOKEN",