auth-fixes (#12)

## Summary

Wire spec-driven auth into the frontend. Auth config (server URL, paths) is extracted from the served OpenAPI spec by `AppProvider`. `AuthProvider` receives the config as a prop. 401 responses from both the main API and the auth server dispatch an `auth:unauthorized` event that triggers redirect to `/login`. Fix `ProfileRoutes` URL duplication bug.

## Changes

### Auth config from spec
- **`main.jsx`** — `AppProvider` wraps everything, loads spec, exposes `authConfig`. `AuthProvider` receives `authConfig` from `useAppContext()`. `onUnauthorized` passed to both `AppProvider` and `AuthProvider` wires `navigate("/login")`.

### 401 handling
- **`AppProvider.tsx`** — remove `onUnauthorized` prop (handled by `AuthProvider`'s event listener instead, avoiding double-navigation).
- **`useApi.ts`** — 401 response interceptor dispatches `auth:unauthorized` CustomEvent on `window`.

### Profile routing fix
- **`Admin.tsx:ProfileRoutes`** — replace nested `<Routes>` (which caused `/profile/me/me` URL duplication with React Router v6) with `useLocation()`/`useNavigate()` conditional rendering. Only allows `/profile/me` and `/profile/me/edit`.
- **`Admin.tsx:ProfileComponentWrapper`** — replace `pushState() + reload()` with React Router `navigate()` for both `onEdit` and `handleSubmit`.

### Debug logging
- Temporary console logs at every navigation point for diagnosing remaining issues.

Reviewed-on: #12
Co-authored-by: Vishesh 'ironeagle' Bangotra <aetoskia@gmail.com>
Co-committed-by: Vishesh 'ironeagle' Bangotra <aetoskia@gmail.com>

react-openapi/src/spec-validator.ts

@@ -45,6 +45,11 @@ export function validateSpec(spec: OpenApiSpec, specConfig?: SpecConfiguration):
     const hasSSE = pathObj?.get?.["x-sse"] === true;
     if (hasSSE) continue;
 
+    // Skip paths where all operations are profile-only (x-profile: true).
+    const pathMethods = Object.entries(pathObj).filter(([k]) => !k.startsWith("x-") && k !== "parameters");
+    const allProfile = pathMethods.length > 0 && pathMethods.every(([, op]: any) => op["x-profile"] === true);
+    if (allProfile) continue;
+
     if (isItemPath || isSubResource) {
       const responseRef = getResponseSchemaRef(pathObj);
       if (responseRef) {