fix(auth): show concise identity with whoami --quiet

[coreplane-switchboard]

Requested by justin · Thread

polylane auth whoami --quiet --output text now prints a single signed-in identity line. Installer reruns can show who is signed in without dumping the full account record.

Why: cli#37 records that installer reruns lost their identity cue when the noisy status dump was removed in polylanedotcom#107; the launch-polish tracking record is nominal#1165.

Where to look

1. Quiet whoami output Only explicit quiet text requests get the one-line identity; normal text and JSON still use the existing formatter. ⚠ Installer must request text because piped CLI output defaults to JSON.
2. Whoami behavior checks Covers the short line, id fallback, default full text, and JSON precedence using a stubbed whoami response. ⚠ Authentication output must not accidentally disclose extra fields in quiet text.

Feedback wanted: Is the explicit --output text --quiet interface the right installer-facing contract, given JSON remains the piped default?

Risk: Limited to auth whoami quiet text rendering; if wrong, installer identity display or automation consuming it changes. Revert this commit to restore the old output.

Verified: 4 focused tests, scoped typecheck, ESLint and diff whitespace check passed; installer wiring and CI matrix remain human/CI-gated.

Decisions (1)

• Use the existing quiet flag. Rejected a new --output line format: quiet is already a global option, while --output is limited to text and JSON; JSON consumers must retain the full object.

Validation (6 criteria)

Criterion	Proof
Quiet text, default text, JSON, fallback identity	npx tsx --test test/auth-whoami.test.ts exit 0; tests 4, pass 4, fail 0.
Type safety after rebase	NODE_OPTIONS=--max-old-space-size=6144 npx tsc --noEmit -p tsconfig.json exit 0.
Changed-file lint	npx eslint src/commands/auth/whoami.ts test/auth-whoami.test.ts exit 0.
Changed-range whitespace	git diff --check origin/main...HEAD exit 0.
Historical baseline	run_check refused baseline with command_refused and no completion receipt; no baseline pass asserted.
Other named fast gates	No prettier, hygiene:check, specs:check or check:pr-title scripts/dependency in this repo; not run. CI checks.yml owns the full matrix.

For agents

Rebased onto origin/main before work and immediately before push (no conflicts). Ignored src/generated was regenerated with npm run codegen after the prepared checkout lacked it; do not commit generated output. node --test --experimental-test-module-mocks --import tsx was refused by recorded check tooling; the focused test instead ran with npx tsx --test. Installer itself lives in polylanedotcom and needs a separate integration change.

🤖 Generated with Claude Code

[justinhelmer]

Reviewed exact head 142b304 against cli#37, the flag parser, credential resolver and output formatter. Quiet text prints one identity line; ordinary text and JSON preserve their prior behavior. The test-only follow-up explicitly overrides stored OAuth credentials; its signed-in full suite passed 549/549, and all three current-head CI jobs passed. LGTM for the CLI change. Installer rerun wiring and a containing CLI release remain separate gates.