Add Codex repo-specific tracking structure

Codex/Portal/CURRENT_STATE.md

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+# Portal — Current State
+
+This file records what is believed to be implemented now.
+
+## Readiness / operation UI
+- Portal consumes API-normalized state.
+- Portal understands:
+  - `ready`
+  - `operationInProgress`
+  - `operationType`
+  - `maintenance`
+  - `operationStartedAt`
+  - `operationMessage`
+- targeted `409` and `503` UX messaging exists for operation conflicts and not-ready states.
+
+## Backup UI
+- game backup UI exists for:
+  - list
+  - create
+  - restore
+  - delete
+- Portal uses API routes, not direct agent calls.
+
+## Console / action gating
+- console command transport uses POST JSON through API.
+- previous blanket `ready === false` gating bug for game actions was fixed.
+- Start is not blocked merely because a stopped server is not ready.
+- backup actions are not blocked purely by `ready === false`; backend validity decides.
+
+## Billing / auth / onboarding
+- billing UI alignment exists with the newer billing state model.
+- forgot/reset password flow exists.
+- first-login onboarding flow exists.
+
+## Dashboard / IA
+- spotlight server card/dashboard refresh landed.