Show the selected bot profile and add OpenRouter fallback (#18)

Uses Codex first, then Claude, then OpenCode through OpenRouter when quota is exhausted.

Every generated comment and review now identifies the selected profile and model in a final quote. The dependent action interface remains one master key.

Verified formatting, lint, type checks, encrypted profile decryption, current OpenCode CLI flags, and 45 tests.

Reviewed-on: #18
Reviewed-by: bot <noreply@capsulizers.com>
Co-authored-by: Danny Kim <temeddix@gmail.com>
Co-committed-by: Danny Kim <temeddix@gmail.com>

src/runtime.ts

@@ -26,6 +26,7 @@ export type RuntimeOutcome =
     body: string;
     reviewPath: string;
     anchorsPath: string;
+    profile: Pick<RuntimeProfile, "type" | "model">;
   }
   | { ok: false };