fix(ui): warn refunds cancel the subscription

[steebchen]

Summary

Refunding a plan payment cancels the Stripe subscription outright — handleChargeRefunded calls subscriptions.cancel(...) on any full refund of a dev/chat plan payment, which ends the plan immediately and wipes the rest of the cycle's credits. The self-refund dialogs either buried that ("your DevPass will be cancelled immediately", as a trailing clause) or never mentioned it at all. This makes the consequence the first thing users read.

Changes

• DevPass invoices (apps/code/.../DevPassInvoices.tsx) — plan payments now lead with "Refunding cancels your subscription completely", state that the plan ends right away rather than at the end of the billing period, that the cycle's remaining credits are lost, and that resubscribing means starting from scratch. Title changed to "Refund and cancel your DevPass?". Reset Pass copy is unchanged (it does not touch the subscription).
• Lounge billing history (apps/playground/.../chat-billing-history.tsx) — same warning for chat plan payments, plus a "Keep my membership" cancel action and a "Refund and cancel" confirm action so the destructive path is explicit. Credit top-up copy is unchanged.
• Org billing transactions (apps/ui/.../billing/transactions-client.tsx) — this dialog rendered credit top-up copy ("N credits will be removed from your balance") for every refundable transaction, including plan payments and Reset Passes, which the endpoint does return here. The copy now branches by transaction type: subscription-cancellation warning for plan payments, pass-specific copy for Reset Passes, existing copy for top-ups. The success toast mentions the cancellation for plan payments too.

Copy-only change; no behavior, API, or eligibility logic touched.

Testing

• pnpm format
• turbo run build --filter=ui --filter=playground --filter=code — all pass

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Generated by Claude Code

Summary by CodeRabbit

• New Features

  • Added clearer refund confirmations for DevPass and chat plan payments.
  • Plan refunds now explain that the subscription ends immediately, remaining credits are lost, and a new subscription is required to use the plan again.
  • Updated action labels to distinguish keeping a membership from requesting a refund.

• Bug Fixes

  • Improved refund processing messages based on the type of transaction.
  • Preserved the existing messaging for Reset Pass refunds and one-time purchases.

[Copilot]

Copilot was unable to review this pull request because the user who requested the review has reached their quota limit.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Repository UI

Review profile: CHILL

Plan: Pro Plus

Run ID: f51ba3a1-8891-4e19-b1f3-7253a7931e29

📥 Commits

Reviewing files that changed from the base of the PR and between 135776e and 4da9102.

📒 Files selected for processing (3)

• apps/code/src/app/dashboard/components/DevPassInvoices.tsx
• apps/playground/src/components/pricing/chat-billing-history.tsx
• apps/ui/src/components/billing/transactions-client.tsx

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Walkthrough

Refund interfaces now recognize DevPass and chat plan transactions, presenting cancellation-specific confirmation, toast, and action-label text while preserving separate messaging for non-plan purchases and Reset Pass refunds.

Changes

Plan refund messaging

Layer / File(s)	Summary
Transaction classification and refund flow apps/ui/src/components/billing/transactions-client.tsx	Plan lifecycle transaction types are classified and used to vary refund toasts, confirmation text, and action labels.
Product-specific refund dialogs apps/playground/src/components/pricing/chat-billing-history.tsx, apps/code/src/app/dashboard/components/DevPassInvoices.tsx	Chat plan refunds use membership cancellation labels, while DevPass refunds explain immediate cancellation, credit loss, and re-subscription requirements.

Estimated code review effort: 2 (Simple) | ~10 minutes

Possibly related PRs

• theopenco/llmgateway#3002: Adds related plan-refund transaction-type handling used by refund detection and UI labeling.
• theopenco/llmgateway#3093: Adds backend refund support and transaction plumbing for dev_plan_reset_pass.
• theopenco/llmgateway#3120: Adds related Reset Pass refund eligibility and reason messaging.

Suggested reviewers: copilot, smakosh

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title is concise and accurately reflects the main UI change: refund flows now warn that refunds cancel the subscription.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch claude/self-refund-subscription-warning-orsary

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