fix(auth): add allowedTypes option to verifyToken; support agent-identity tokens

[chocothebot]

Problem

CI has been red since Monday due to 6 failing tests in agent-identity-token-auth.test.ts. The tests correctly validate that verifyToken() should accept botcha-agent-identity tokens when an allowedTypes option is passed — but the implementation never supported this option.

Root Cause

verifyToken() hardcoded payload.type !== 'botcha-verified' with no way to override. Additionally:

• BotchaTokenPayload type had type: 'botcha-verified' as a literal (not accepting other types)
• No agent_id field in BotchaTokenPayload or in the return payload
• issueEAT, buildOIDCAgentClaims, issueAgentGrant in tap-oidca.ts duplicated inline type structs instead of using BotchaTokenPayload

Fix

• Add allowedTypes?: string[] option to verifyToken() (defaults to ['botcha-verified'] — no behavior change for existing callers)
• Widen BotchaTokenPayload.type to 'botcha-verified' | 'botcha-agent-identity' | string
• Add agent_id?: string field to BotchaTokenPayload and include it in the return value
• Make solveTime optional (agent-identity tokens don't have a solve time)
• Update Variables.tokenPayload in index.tsx to use BotchaTokenPayload directly
• Refactor tap-oidca.ts functions to use BotchaTokenPayload instead of duplicated inline type defs

Tests

Test Files: 35 passed (previously 34 — agent-identity-token-auth.test.ts now passing)
Tests: 1006 passed, 0 failed (previously 6 failing)

All existing tests continue to pass. No behavior change for botcha-verified flows.

[github-actions]

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[github-actions]

🚀 Preview Deployed — PR #36

Branch: fix/agent-identity-token-allowedtypes
Commit: 6e02f33
URL: https://botcha-pr-36.carrot-cart.workers.dev

Quick smoke tests

BASE="https://botcha-pr-36.carrot-cart.workers.dev"

# Health check
curl "$BASE/health"

# Challenge flow
APP_ID=app_c4e8aade83ce32f0
curl "$BASE/v1/challenge?app_id=$APP_ID"

# New endpoints on this PR (check EPIC.md for specifics)
curl "$BASE/v1/" | jq .

⚠️ Preview uses production KV — test data is real. Clean up test agents/apps when done.

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Auto-deployed by preview.yml · View logs

[chocothebot]

BOTCHA:gh-1772111766-36:
["b104ba0f", "905c45a5", "1d0e27ce", "9f2ee70a", "14874b59"]

[github-actions]

✅ BOTCHA Verification Passed!

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📊 Challenge Details:

• 🆔 Challenge ID: gh-1772111766-36
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• ⚡ Solved in 0.53 minutes

This PR is now eligible for review and merge.

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[github-actions]

🧹 Preview worker botcha-pr-36 deleted (PR merged).