restore prime inference browser login and fix cancel shortcut labels

[kevinjosethomas]

• selecting prime inference in /login lost its browser sign-in flow when api key providers became key-entry only; this brings it back.
• the login dialog now runs the browser challenge and a manual paste-an-api-key fallback side by side, so whichever completes first wins.
• keybinding hints on macos no longer relabel ctrl as cmd, since terminals send the literal control key, so the cancel hint now shows the keys that actually work.

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Note

Medium Risk
Touches credential storage and auth flow for Prime Inference with concurrent browser/manual paths; UI hint change is low risk but login regression could block provider setup.

Overview
Restores Prime Inference /login to a browser sign-in flow while keeping a manual API-key paste path in the same dialog. The interactive mode now races loginPrimeInference against manual input (with a separate abort controller so pasting a key stops browser polling without closing the dialog), validates pasted keys via checkPrimeInferenceAccess, and finishes through a shared completePrimeInferenceLogin helper—replacing the standalone showPrimeInferenceApiKeyLoginDialog path.

Login dialog refactors input waiting into waitForInput(), reused by showManualInput and showPrompt, so empty submissions can re-arm input for the fallback flow.

Keybinding hints on macOS now show Ctrl for control shortcuts (terminals send Control, not Cmd) while Alt still displays as Option. Tests cover hint formatting, cancel keys, and re-arming manual input.

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Note

Restore Prime Inference browser login and fix Ctrl keybinding labels on macOS

• Restores the combined browser-based + manual API key login flow for Prime Inference by routing provider selection to showPrimeInferenceLoginDialog instead of the removed showPrimeInferenceApiKeyLoginDialog.
• Both login paths run concurrently; manual API key entry aborts the browser flow and is validated for Prime Inference access before completing login.
• Extracts shared credential storage, team selection, and completion logic into a new completePrimeInferenceLogin helper.
• Fixes macOS keybinding hints in keybinding-hints.ts to display Ctrl instead of Cmd for the Control modifier (terminals send a literal Control key, not Command).
• Adds a waitForInput() method on LoginDialogComponent so callers can await re-submission of the existing input field without re-rendering it.

^{Macroscope summarized a67a46f.}

[linear]

ENG-4057 No Prime Inference flow for login

Seems like with our earlier fix where api key providers are only API keys and not login flows, Prime Inference now only has an API key flow (where you enter an API key). The old flow where it opens your browser and automatically generates a key seems to be missing when I select Prime Inference in /login providers. That flow was much easier and far more convenient.

Can you reintroduce that flow for Prime Inference, either by making an exception to the api key provider flow for Prime Inference, or considering Prime Inference a subscription rather than API key.

Another small bug in the API key flow, "esc" no longer exits the API key entering popup, only Ctrl+C does, so update the label to match that.

Review in Linear

[cursor]

Cursor Bugbot has reviewed your changes and found 1 potential issue.

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[cursor]

Manual key UI after challenge

Medium Severity

Manual API key entry is wired only inside the onAuth callback, so if loginPrimeInference fails before the browser challenge is created (for example challenge HTTP errors or malformed responses), Promise.race rejects and the dialog closes without ever showing the paste-key fallback that the removed API-key-only login dialog always offered.

 

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