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Project	Deployment	Actions	Updated (UTC)
docs	Skipped		Apr 8, 2026 11:54pm

PR Summary

Medium Risk
Touches billing/usage-enforcement paths for speech-to-text token issuance and feature gating; mistakes could incorrectly block access or fail to enforce limits.

Overview
Updates the /api/speech/token endpoint to enforce usage limits via checkServerSideUsageLimits (returning a 402 with an optional server-provided message) instead of the old cost-limit helper.

Adds client handling for 402 responses in useSpeechToText and wires UserInput to redirect users to subscription settings when voice usage is exceeded.

Removes dead subscription-state/cost-limit helpers and the UserSubscriptionState type, and refactors copilot tool description logic and table plan-limit selection to rely on getHighestPrioritySubscription plus plan helpers (isPaid, getPlanTypeForLimits), updating tests accordingly.

^{Reviewed by Cursor Bugbot for commit 5b9a5c5. Configure here.}

Greptile Summary

This PR removes dead helper code from the subscription state layer and adjusts the billing check in the speech token route (billingUserId-guarded usage check). The billing barrel (lib/billing/index.ts) and types file are trimmed accordingly. All remaining findings are P2.

Confidence Score: 5/5

Safe to merge — all findings are P2 style/type-cleanliness issues that don't affect runtime behaviour.

The dead-code removal is clean, the token route auth flow is correct, and the updated imports in chat-payload are properly tested. Only P2 issues remain: redundant logger re-mock in the test, and any types that were already present in the codebase and not introduced by this PR.

No files require special attention.

Important Files Changed

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    A[POST /api/speech/token] --> B{chatId present?}
    B -- Yes --> C[validateChatAuth]
    C -- invalid --> D[401 Unauthorized]
    C -- valid --> E[billingUserId = chat.ownerId]
    B -- No --> F[getSession]
    F -- no session --> D
    F -- valid --> G[billingUserId = session.user.id]
    E --> H{isBillingEnabled?}
    G --> H
    H -- Yes --> I[checkRateLimitDirect]
    I -- exceeded --> J[429 Rate Limit]
    I -- ok --> K{billingUserId set?}
    H -- No --> K
    K -- Yes --> L[checkServerSideUsageLimits]
    L -- exceeded --> M[402 Limit Exceeded]
    L -- ok --> N[Fetch ElevenLabs token]
    K -- No --> N
    N -- error --> O[502 Bad Gateway]
    N -- ok --> P[recordUsage async]
    P --> Q[200 token response]

_{Reviews (1): Last reviewed commit: "fix(subscription-state): remove dead cod..." | Re-trigger Greptile}

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