fix: restore hermes-config and config-patch API routes

[Trillx]

fix: restore hermes-config and config-patch API routes

Problem

The Aurora rename migration (efcb7d14, May 1) renamed hermes-config.ts → claude-config.ts under src/routes/api/. However, the frontend code and routeTree.gen.ts still reference the original paths:

• /api/hermes-config — used by settings-dialog.tsx (GET for reading config, PATCH for saving provider settings, API keys, model defaults)
• /api/config-patch — used by providers-screen.tsx and provider-wizard.tsx (POST for saving provider API keys and custom endpoint config)

Since the route files no longer exist, all requests to these endpoints fall through to the SPA HTML fallback (HTTP 200 with HTML content). The frontend's response.json() fails to parse HTML, resulting in the "Failed to save" error toast.

Evidence

• routeTree.gen.ts contains 20+ references to /api/hermes-config and /api/config-patch
• -hermes-config.test.ts imports from './hermes-config' (the original file name)
• src/server/hermes-config-route.ts (6697 bytes) has the handler code (handleHermesConfigGet, handleHermesConfigPatch) but no route file to mount it
• claude-config.ts exists as the renamed file but serves /api/claude-config, not /api/hermes-config

Fix

Created two thin route files that delegate to the existing handlers:

src/routes/api/hermes-config.ts — wires GET/PATCH/POST to handleHermesConfigGet/handleHermesConfigPatch

src/routes/api/config-patch.ts — wires POST to handleHermesConfigPatch

Both files import from ../../server/hermes-config-route which already handles:

• Action-based patches (set-api-key, set-default-model, set-custom-provider, etc.)
• Legacy patches ({ config: {...}, env: {...} })
• Auth and capability checks

Testing

Verified locally:

• GET /api/hermes-config returns proper JSON with provider status (12 providers)
• PATCH /api/hermes-config with legacy format succeeds
• POST /api/config-patch succeeds
• Config file integrity preserved after writes

Related

• fix(settings): wire provider OAuth, add canonical hermes-config API #399 — Original PR that added the canonical hermes-config API with action-based patches
• Settings save silently destroys user config sections (model, custom_providers, compression, auxiliary) via partial PUT /api/config #85 — Settings save silently destroys user config sections

[outsourc-e]

Closing as superseded by #483, which is already merged into main. The validated fix from this branch was folded into the consolidation batch; keeping this PR open now just inflates the queue. If there is any missing behavior not covered by #483, we can reopen or spin a fresh focused follow-up.

[outsourc-e]

Superseded by merged cleanup batch #483.