MAESTRO: fix lint issues

Auto Run Docs/SpecKit-web-header-analyzer-Phase-08-Security-Operations.md

@@ -46,5 +46,5 @@ This phase protects the analysis service from abuse with per-IP rate limiting an
 - [x] All routers and CORS middleware are registered in `main.py`
 - [x] Application starts statelessly — no database, no session management. Verified `backend/app/main.py` registers only CORS + rate limiter middleware and does not initialize any DB/session services.
 - [x] CAPTCHA modal is keyboard accessible (Tab, Enter, Escape to close)
-- [ ] Linting passes on both sides
+- [x] Linting passes on both sides
 - [ ] Run `/speckit.analyze` to verify consistency

backend/tests/api/test_captcha.py

@@ -63,7 +63,10 @@ async def test_captcha_verify_returns_bypass_token() -> None:
     ) as client:
         response = await client.post(
             "/api/captcha/verify",
-            json={"challengeToken": challenge.challenge_token, "answer": challenge.answer},
+            json={
+                "challengeToken": challenge.challenge_token,
+                "answer": challenge.answer,
+            },
             headers={"x-forwarded-for": client_ip},
         )
 

frontend/src/components/CaptchaChallenge.tsx

@@ -189,6 +189,7 @@ export default function CaptchaChallenge({
 
         <div className="mt-5 flex flex-col gap-4">
           <div className="rounded-xl border border-info/20 bg-background/50 p-4">
+            {/* eslint-disable-next-line @next/next/no-img-element */}
             <img
               src={`data:image/png;base64,${challenge.imageBase64}`}
               alt="CAPTCHA challenge"

frontend/vitest.setup.ts

@@ -1,5 +1,5 @@
 const createLocalStorageMock = () => {
-  let store = new Map<string, string>();
+  const store = new Map<string, string>();
 
   return {
     get length() {