fix(dashboard): post-merge fixes - quick-start, worker creds, check_skip

[nillikechatchat]

Summary

Follow-up to PR #1075 (merged). Contains improvements that were in-flight when the original PR was merged.

Closes #1080 (continued)

Improvements (synced from codex review)

1. Quick-start mode support: step_dashboard now handles AGENTTEAMS_QUICKSTART (aligns with main installer)
2. Worker credential extraction: extract worker passwords/room IDs from workers-registry.json during upgrade
3. Dashboard data volume cleanup: remove agentteams-dashboard-data volume on uninstall
4. Gateway URL probing: probe from inside controller container (same network as dashboard) with host fallback
5. verify.sh improvements: add check_skip() for semantically correct skip reporting; use grep -qx for exact container name matching
6. Test 19: executable test for quick-start step_dashboard

Bug fixes

1. 🔴 check_skip undefined: verify.sh called check_skip but never defined it — added function definition
2. Keep-all branch preserved: codex had removed the UPGRADE_KEEP_ALL early-return in step_dashboard; restored it since maintainers explicitly require keep-all upgrade to preserve dashboard config

Test coverage

• 47/47 passed (was 44 at PR feat(install): integrate agentteams-dashboard as optional component #1075 merge time)
• Added Test 19 (quick-start execution)
• Fixed Test 10 grep range (-A 40 → -A 60) to accommodate longer function
• Added curl/sleep mock to Test 18 to avoid 60s real-port polling

Test plan

• bash install/agentteams-dashboard-tests.sh — 47/47 passed
• Cross-repo consistency verified (install.sh / verify.sh / tests identical between AgentTeams and agentteams-dashboard repos)
• bash -n syntax check passed for all modified scripts

[nillikechatchat]

@shiyiyue1102 这是 PR #1075 合并后的跟进 PR，包含合并时正在进行中的改进和修复。

背景

PR #1075 在第五轮审查修复（提交 21d809c）后合并。但合并时有一批改进正在同步中（提交 d720430），未能包含在合并中。本 PR 补齐这些改动。

改动内容

改进（来自 codex 审查）：

1. Quick-start 模式支持（AGENTTEAMS_QUICKSTART）
2. Worker 凭证提取（升级时从 workers-registry.json 提取）
3. Dashboard 数据卷清理（卸载时清理 agentteams-dashboard-data）
4. 网关 URL 探测改进（从控制器内部探测，主机兜底）
5. verify.sh 新增 check_skip() 语义化跳过
6. 新增 Test 19（quick-start 执行测试）

修复：

1. 🔴 check_skip 函数未定义（verify.sh 调用但从未定义，运行时报错）
2. 恢复 keep-all 分支（codex 误删，维护者要求保留）

测试

• 47/47 通过（PR feat(install): integrate agentteams-dashboard as optional component #1075 合并时为 44/44）
• 两仓库文件一致性已验证

请您审阅，感谢！

---

@shiyiyue1102 This is a follow-up PR after the merge of PR #1075, containing improvements and fixes that were in progress at the time of the merge.

Background

PR #1075 was merged after the fifth round of review fixes (commit 21d809c). However, a batch of improvements were being synchronized during the merge (commit d720430) and were not included in the merge. This PR addresses these changes.

Change content

Improvements (from codex review):

1. Quick-start mode support (AGENTTEAMS_QUICKSTART)
2. Worker credentials extraction (extracted from workers-registry.json when upgrading)
3. Dashboard data volume cleanup (clean up agentteams-dashboard-data when uninstalling)
4. Improved gateway URL detection (detection from inside the controller, the host knows everything)
5. verify.sh adds check_skip() to semantically skip
6. Added Test 19 (quick-start execution test)

Fix:

1. 🔴 check_skip function is not defined (verify.sh is called but never defined, and an error occurs when running)
2. Restore the keep-all branch (codex was accidentally deleted and the maintainer requested to keep it)

Test

• 47/47 passed (44/44 when PR feat(install): integrate agentteams-dashboard as optional component #1075 merged)
• The consistency of the files in the two warehouses has been verified

Please review, thank you!