fix(amp): restore usage fetching

[steipete]

Summary

• restore Amp usage fetching with the current userDisplayBalanceInfo endpoint
• prefer local amp usage in Auto mode, with the browser-cookie web path as fallback
• expose individual and workspace credit balances in the existing Amp card
• retain the legacy settings-page parser for older deployments

Closes #1317.
Supersedes #1400 because its fork does not allow maintainer edits. The implementation and contributor credit are preserved from @3kh0.

Security

• only the session cookie is imported or accepted manually
• cookies remain limited to HTTPS Amp hosts during redirects
• diagnostics emit cookie names, never values
• CLI stdin is closed and execution is bounded by a 15-second timeout

Proof

• swift test --filter Amp (17 tests)
• make check
• autoreview: clean, no accepted/actionable findings (gpt-5.5, confidence 0.79)
• contributor reports live end-to-end validation with personal and workspace accounts in fix: Amp fetching logic + add workspace support #1400

Risk

Medium. This repairs an existing provider but depends on Amp's undocumented authenticated response format. Exact-head CI is required; no autonomous merge until the authenticated provider behavior receives maintainer product review.

[clawsweeper]

Codex review: needs maintainer review before merge. Reviewed June 11, 2026, 6:33 PM ET / 22:33 UTC.

Summary
Review failed before ClawSweeper could summarize the requested change.

Reproducibility: unclear. The review failed before ClawSweeper could establish a reproduction path.

Review metrics: none identified.

Merge readiness
Overall: 🌊 off-meta tidepool
Proof: 🌊 off-meta tidepool
Patch quality: 🌊 off-meta tidepool
Result: rating does not apply to this item.

Overall follows the weaker of proof and patch quality, so missing proof can cap an otherwise strong patch.

Risk before merge

• [P1] No close action taken because the review did not complete.

Maintainer options:

1. Decide the mitigation before merge
   Retry the Codex review after fixing the execution failure.
2. Pause or close
   Do not merge this PR until maintainers decide whether the risk is worth taking.

Next step before merge

• Review did not complete, so no work-lane recommendation was made.

Review details

Best possible solution:

Retry the Codex review after fixing the execution failure.

Do we have a high-confidence way to reproduce the issue?

Unclear. The review failed before ClawSweeper could establish a reproduction path.

Is this the best way to solve the issue?

Unclear. Retry the review first so ClawSweeper can evaluate the actual issue and fix direction.

AGENTS.md: unclear because the file could not be read completely.

Codex review notes: model internal, reasoning high; reviewed against 1912f75f4962.

Label changes

Label justifications:

• rating: 🌊 off-meta tidepool: Overall readiness is 🌊 off-meta tidepool; proof is 🌊 off-meta tidepool and patch quality is 🌊 off-meta tidepool.

Evidence reviewed

What I checked:

• failure reason: retryable codex transport failure.
• codex failure detail: Codex review failed for this PR with exit 1.
• codex stderr: d`.\n ".
• codex stdout: No stdout captured.

Likely related people:

• unknown: Codex failed before it could trace repository history. (role: review did not complete; confidence: low)

What the crustacean ranks mean

• 🦀 challenger crab: rare, exceptional readiness with strong proof, clean implementation, and convincing validation.
• 🦞 diamond lobster: very strong readiness with only minor maintainer review expected.
• 🐚 platinum hermit: good normal PR, likely mergeable with ordinary maintainer review.
• 🦐 gold shrimp: useful signal, but proof or patch confidence is still limited.
• 🦪 silver shellfish: thin signal; proof, validation, or implementation needs work.
• 🧂 unranked krab: not merge-ready because proof is missing/unusable or there are serious correctness or safety concerns.
• 🌊 off-meta tidepool: rating does not apply to this item.

Shiny media proof means a screenshot, video, or linked artifact directly shows the changed behavior. Runtime, network, CSP, and security claims still need visible diagnostics.

How this review workflow works

• ClawSweeper keeps one durable marker-backed review comment per issue or PR.
• Re-runs edit this comment so the latest verdict, findings, and automation markers stay together instead of adding duplicate bot comments.
• A fresh review can be triggered by eligible @clawsweeper re-review comments, exact-item GitHub events, scheduled/background review runs, or manual workflow dispatch.
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[chatgpt-codex-connector]

💡 Codex Review

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Reviewed commit: 765d02c3ee

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[chatgpt-codex-connector]

Handle credits-only Amp usage output

When Amp returns paid-credits-only display text with no Amp Free: line, this guard throws before the Individual credits and workspace balances are parsed below. That makes both amp usage and the new web endpoint fail for paid/credits-only accounts, so the provider never shows the credit balance this change is meant to add; treat the free-tier line as optional and still build a snapshot from the credit lines when present.

Useful? React with 👍 / 👎.