宜博 / lemongraph

Implements docs/todo/work-graph-time-travel-debugging-design.md, backend
and console together (user confirmed 2026-08-06).

Key finding that shrank the v1 scope: ux_work_graph_run_active is a
PARTIAL unique index (only covers non-terminal statuses), not a blanket
one -- forking from a parent run that's already reached a terminal status
never collides with it at all. v1 restricts forking to exactly that case,
so no index/constraint change is needed, only two new nullable columns
(parent_run_id, fork_of_node_exec_id).

Resolved the requirements doc's FR-1 ambiguity ("override input_payload,
re-trigger execution") as OUTPUT SUBSTITUTION instead: the fork point's
own output_payload is replaced with the human-supplied content directly,
it is never re-executed via a new claude -p call -- only the strict
downstream subgraph actually re-runs. This sidesteps reconciling the
different build_prompt/input_payload conventions each caller uses
(Planner's artifact_type lookup, E's generic task_prompt field, F's jury)
-- work_graph_fork.py only needs the persisted graph_manifest and each
node's output_payload.

Implementation needs ZERO changes to the execution engine: pre-seeding
every non-downstream node as a 'done' work_node_execution row before
calling the unmodified run_graph() on the unmodified graph_manifest is
enough -- run_work_node()'s existing REQ-06 breakpoint-recovery
short-circuit (already-'done' nodes return their persisted output without
calling run_fn) does all the "reuse without re-executing" work for free.
_reconstruct_build_prompt supports two graph shapes generically from
persisted state alone (Planner's canonical doc chain via
e2e_pipeline._planner_prompt_builder, and E's generic task_prompt field);
anything else raises ForkGraphShapeUnsupportedError rather than producing
broken prompts.

New: src/work_graph_fork.py (create_fork/execute_fork/fork_work_graph_run/
start_fork_in_background, the last splitting fast DB-only setup from slow
real execution so an HTTP caller gets run_id back immediately, same
pattern task_execution.start_task_execution_in_background already uses).
work_graph_run gets parent_run_id/fork_of_node_exec_id (SCHEMA_SQL +
migrate_add_work_graph_fork_columns for existing databases).
work_graph_run_query.py/task_query.py surface both fields. New endpoint
POST /api/work-nodes/:node_exec_id/fork. Console: a "从这里分叉" form on
each 'done' node in v_run_detail, a fork badge linking back to the parent
run, and a 🔀 marker on v_graph_console's run list -- no diff/merge UI
(non-goal #3), read-only branch visibility only.

Verified end-to-end for real: started the actual backend, sent a real
HTTP fork request, confirmed the new run persisted with correct
parent_run_id/fork_of_node_exec_id lineage.

Tests cover requirements doc acceptance standards 1-3 (PRD swapped ->
SDD/Benchmark genuinely re-execute, BRD untouched; original run completely
unaffected; the same node forked twice produces independent branches) plus
schema migration idempotency, query-layer field surfacing, the HTTP route,
and 3 frontend smoke-test assertions. Full src suite (608 tests) + all 3
frontend smoke tests pass.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

Auto-continuation after a successful manual_resume only fired for
blocked_reason in ('user_paused', 'user_stopped'). A real transient network
blip ("API Error: Unable to connect to API (ENOTFOUND)") blocks a task with
blocked_reason='execution_error' the same way any other unroutable
exception does -- resuming it only flipped the status field back, with no
path to actually re-trigger execution (/execute requires status='queued',
but a resumed task lands on 'planning_brd_prd_sdd'/'coding' instead).
Clicking "resume" was a dead end a second click couldn't fix.

The user has already made the judgment call to retry by clicking resume at
all. Withholding continuation only made sense for the two reasons with
their own dedicated resume path requiring a different action first:
budget_exceeded (must raise the limit) and loop_limit_reached (excluded by
name, not just by its usual restored status). Every other blocked_reason
now auto-continues on a successful resume to a resumable status.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

…10c5-main-checkout-drift

Users had no way to actually start a queued goal from the console --
task.status just sits at 'queued' forever. Traced the root cause through
03-C: c_task_create's own contract ("若 max_concurrent_goals 已达上限，
任务落 queued 但不触发调度") implies task creation auto-triggers
scheduling otherwise, and 03-C/04-P repeatedly assume an always-on Org
Graph scheduler that watches the queue -- src/scheduler.py builds the
mechanism but nothing ever spins it up as a running process, so no
"start" button was ever designed because none was supposed to be needed.

Design (confirmed with user, both recommended options chosen):
- Pause/Stop are a soft stop, not a real subprocess kill -- the current
  in-flight `claude` call finishes naturally, only the next phase is
  withheld. Hard-killing would need Popen + PID tracking, out of scope.
- No new task.status enum value -- reuses blocked_pending_human with
  blocked_reason='user_paused'/'user_stopped', riding the existing
  manual_resume mechanism instead of a schema change.

New src/task_execution.py: run_or_resume_task_lifecycle() resumes from
whichever phase actually hasn't run yet (queued/planning_brd_prd_sdd/
coding), start_task_execution_in_background() runs it to completion on
its own daemon thread + sqlite connection, request_pause() blocks an
in-flight task. Extended /route's manual_resume handling so resuming
from a user-initiated pause/stop actually re-continues execution in the
background, not just flips the status field back.

Real gap found while building this: backend_server.create_server() never
stored db_path on the server object -- needed for the new background
thread to open its own connection to the same db.

22 new tests (14 src/test_task_execution.py + 8 TaskExecutionRouteTest in
test_backend_server.py, HTTP wiring mocked around the already-unit-tested
background thread mechanics). Verified against a real running server via
curl: /execute 409s a non-queued task, /pause 409s a queued task and a
double-pause, succeeds on a coding task. src/ suite: 496 tests, all green.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

Two new console pages requested directly by the user, beyond 02-V's
original declared non-goal ("不做完整多项目管理 UI（项目列表/切换）"):

- v_project_list: full project list + rename + archive/reactivate.
  "Import an existing directory with real code" needs no new code --
  project_scaffold.create_project() already only ever adds .graphlemon/
  inside the target folder. New: src/project_query.py (list/get/update),
  GET/PUT/DELETE /api/projects[/:id]. DELETE archives (status='archived'),
  never a physical row delete -- project_id is FK-referenced from task/
  artifact/bug_record/etc., and 01-M's own active/archived enum already
  models this as soft-delete.

- v_goal_list: extends the existing v_task_board/v_task_detail rather than
  duplicating them. Added sort/order to task_query.list_tasks() (column
  whitelist, no injection surface) and edit/delete on v_task_detail, both
  restricted to status='queued' (task_query.TaskNotEditableError, HTTP 409)
  -- editing or deleting a goal after real work has referenced it would
  leave that history pointing at something that no longer matches reality.

Implemented directly rather than through graphlemon's own self-hosting
loop -- confirmed with the user first that implement_code() always uses a
hardcoded single-node manifest (no plan_work_graph() call for Coder), so a
multi-page/multi-endpoint feature like this would've been one unreviewable
Coder session with no way to decompose it.

Real bug found on first verification pass (not caught by the existing
_insert_task test helper, which never writes execution_event): a real
task_create.create_task() always writes an execution_event row in the same
transaction (01-M's FK, no ON DELETE CASCADE) -- even a never-touched
queued task already has one, so DELETE FROM task raised
sqlite3.IntegrityError. Fixed by clearing the task's own execution_event
rows first; new regression test goes through the real create_task() path.

474 tests green. Verified end-to-end against a real running server (every
new endpoint exercised via curl) since the Chrome extension is still
unavailable this session.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

Adds src/deployment_query.py (list_deployments/get_current_deployment/
get_deployment -- no project_id filter needed, deployment has no project_id
column since there's exactly one graphlemon self-target) + three new
backend_server.py routes (GET /api/deployments, /current, /:id, the last
with recent deploy_health_signal history) + a new v_deployment_status page
in frontend/app.js polling every 5s (deployment.status changes don't go
through c_ws_subscribe -- Deploy Supervisor writes deployment/
deploy_health_signal directly, no execution_event of its own).

No 02-V spec exists for this view (PH5 was added after 02-V was written) --
DOM/class conventions follow the existing pages' own patterns. Verified
against a real running server via urllib (browser extension unavailable
this session), plus 9 deployment_query unit tests and 5 real HTTP route
tests.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

Adds supervisor/deploy_health_check.py: run_health_check() runs the three
pre-cutover checks in order, stopping at the first failure (03-C: "任一检查项
fail 立即整体判定 health_check_failed，不等待其余检查项跑完") and persisting
a deploy_health_signal row for every check that actually ran.

- process_alive: polls deploy_supervisor.is_alive() up to HEALTH_CHECK_STARTUP_TIMEOUT.
- http_health: hits the candidate's /api/health -- added to backend_server.py
  (U-037 deliberately left this for U-038). Not just "process exists" --
  runs a real SELECT 1 to catch a wedged sqlite connection a live-but-stuck
  process would otherwise pass.
- canary_task: a real (not mocked) project+task creation round-trip against
  the candidate over HTTP -- no real Org Graph/claude calls, since
  c_task_create's synchronous 'queued' landing is already a deterministic,
  always-should-pass result, which is what a canary needs.

Timeouts are the MVP-fixed drafts from 05 §5.9, explicitly flagged there as
needing real calibration later, not hardcoded as authoritative.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

Adds supervisor/deploy_stage.py: stage_deployment() creates a deployment row,
git-worktree-checks-out the target commit into a fresh directory (--detach,
never in-place git pull), copies the production DB to a one-time candidate
copy, and Popens a real candidate backend process on a free port.

Return value follows 04-P §4.6's state-machine table (status after the call
is 'candidate_starting') rather than 03-C's one-line 'staged' summary --
04-P's own trigger text ("c_deploy_supervisor_stage 完成" moves the row to
candidate_starting) is the more detailed/authoritative source when the two
disagree, same precedent used throughout this project.

Found and closed two real gaps along the way:
- deployment's own field list never included where a candidate's checkout
  directory lives -- added candidate_instance_dir to schema.py (also what
  the NEXT staging call's previous_instance_dir bootstraps from once a
  deployment reaches 'finalized').
- backend_server.py had no CLI entry point at all since U-007 -- create_server()
  was only ever instantiated in-process by tests. Added main() (argparse +
  serve_forever + SIGTERM->shutdown() from a separate thread, per
  http.server's own same-thread-deadlock warning).

RealCandidateLaunchTest spawns and HTTP-probes a genuine
`python3 -m src.backend_server` subprocess against a real git-worktree
checkout of this repo (not mocked) -- caught a real ordering issue doing so:
git worktree only sees committed content, so testing before this Unit's own
commit landed would check out backend_server.py without main() at all.
Fixed by using `git stash create` (builds a commit object from the current
working tree without touching HEAD/index) as the commit-to-test-against,
falling back to plain HEAD once the tree is clean post-commit.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

三个都是 config_id='default' 单例配置，首次使用即创建、之后原地更新
（upsert），不需要单独的初始化流程：

- c_concurrency_config_update：新增 src/settings_config.py（
  org_concurrency_config 之前完全没人碰过），校验 max_concurrent_goals
  落在 1-50。
- c_budget_config_update：budget_guardrail.py 新增 upsert_budget_config()
  ——跟 U-019 已有的 update_budget_limit_and_resume()（只更新已存在的
  行）不是一回事，这个是真正完整的设置页控制器，支持首次创建，沿用
  同一套"额度调高后自动恢复 budget_exceeded 阻塞任务"副作用（提取成
  _resume_budget_blocked_tasks() 共享）。
- c_log_retention_config_update：同样在 settings_config.py 里，校验
  retention_days > 0。

三处校验都在业务层做完整检查，HTTP 层额外兜了 except (InvalidParamError,
TypeError)——payload 数值字段缺失时 None<=0 这类比较会抛 TypeError 而
不是业务异常，两个都要接住才能保证返回干净的 400 而不是裸 500。
backend_server.py 第一次加了 do_PUT。

前端三个页面共享一个 renderSettingsSubnav() 小组件模拟 02-V 原型里的
设置下拉菜单。真实服务器端到端验证过三个 PUT/GET 的完整读写循环。

PH3（人机交互控制台）至此全部完成：U-022~U-030。

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

c_skill_diff 和 U-028 的 c_artifact_get 一样，只存在于机器可读的
sdd-mvcp-contract.json，03-C 正文从未写出来，已订正补全。
c_skill_list/c_skill_get 两份文档都没定义，是 v_skill_library/
v_skill_audit_log 自己的展示需求倒逼出来的缺口。

新增 src/skill_query.py：list_skills()、get_skill_audit_log()、
get_diff()（git diff <before> <after>——skill_update.py 的
_write_and_commit 把每次迭代做成原子单文件 commit，整仓库范围的 diff
天然只涉及那一个 Skill 文件）。

关键安全考量：Skill 库活在 graphlemon 自己的仓库里，c_skill_rollback
会真的在这个仓库里跑 git commit——如果 HTTP 层写死指向真实仓库根目
录，任何针对这条路由的测试都会在正在跑的这个 graphlemon 仓库里留下
真实提交。参照 db_path 已有的做法，给 create_server() 加了
skill_repo_path 参数（默认 graphlemon 真实仓库根，测试传临时仓库），
不通过 HTTP 暴露这个参数，避免变成任意写入的口子。记录在 05
§5.4.1.4。

真实服务器 + 临时仓库端到端验证过完整的 update→diff→rollback 闭环，
确认过跑完之后 graphlemon 自己仓库的 git log 完全没变化。

v_skill_library/v_skill_audit_log 不检查"当前项目"——Skill 是平台级
资产，跟项目无关。

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

c_artifact_get 在机器可读的 sdd-mvcp-contract.json 里其实定义过
（GET /api/artifacts/:artifact_id），只是 03-C 正文一直没写出来，已订正
补全。c_artifact_list 连 MVCP JSON 里都没有 operation 定义，纯粹是
v_artifact_browser 自己的过滤字段倒逼出来的缺口，跟 U-025 补 c_task_list
是同一类问题。

新增 src/artifact_query.py：list_artifacts() 返回裸数组（跟已有的
list_tasks() 保持同款风格）；get_artifact() 把血缘链（按
depends_on_artifact_ids 往回走，只走第一个依赖——这条流水线的实际产出
只有线性 BRD→PRD→SDD 链）和文件内容（artifact 表本身没有 content 列，
走 project.target_folder_path + artifact.file_path 现读磁盘）一起返回，
预览面板一次请求就够。

前端预览统一用 <pre> 纯文本展示，不做 Markdown 渲染/代码高亮——02-V
原文想要那个效果，但需要引入第一个前端第三方库，跟这个控制台一贯的纯
vanilla JS、无构建步骤做法冲突，是有意简化。顺手给 index.html 常驻导航
栏加上了"产物"链接。

真实服务器验证过三级血缘链（BRD→PRD→SDD）返回顺序正确。

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

execution_log_file 的行生命周期 U-013 早就管好了，但从来没有代码真的往
日志文件里写过内容——src/execution_log.py 新增 append_log() 补上这条
缺失的写路径，设计成 run_fn 执行过程中随时可调用，不关心节点在做什么。
get_log() 按 offset/limit 分页读，download=true 时走原始文件流。

c_ws_log_tail（WS /api/ws/work-nodes/:node_exec_id/log）复用 U-024 手写
的 RFC 6455 机制，轮询 execution_event(log_appended)；节点一旦转终态
（done/blocked/failed）服务端主动发关闭帧断开，不让客户端一直轮询。

p_log_retention_cleanup 实现成纯函数 run_log_retention_cleanup()：过期
扫描 + max_total_size_mb 超限按最旧优先追加候选 + 单个文件删除失败只
记录不阻塞其余项，没有配调度器（不在本 Unit 覆盖范围），留给未来的
调度进程周期调用。

过程中意外抓到一个真的并发 bug：_Server.server_close() 关闭共享
sqlite 连接时原来没拿 conn_lock，如果这时候正好有个 WS 轮询线程在
另一边持锁执行 SQL，两个线程无同步地并发操作同一个 C 级 sqlite3 连接
对象，实测直接把解释器崩了（SIGSEGV）——U-024 就已经有这个隐患，这次
高频 WS 测试把时序窗口撞开了。修好后连续跑几十次全部稳定通过，记录
在 05 §5.4.1.3。

frontend/app.js 的 v_log_viewer 挂在 v_task_detail 每个 to-do 节点的
展开详情里，首次展开才建连接（懒加载），运行中态走 c_ws_log_tail 实时
滚动、终态走 c_execution_log_get 静态拉取，活跃连接在任务级刷新/离开
页面时统一关闭。真实服务器 + Node 原生 WebSocket/fetch 端到端验证过
实时追加与终态自动断开的完整链路。

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

三个页面需要的读接口此前都不存在，本 Unit 一并建了：

- c_task_list/c_task_get（03-C §3.2，此前无 Unit 认领）：新增
  src/task_query.py + GET /api/tasks、GET /api/tasks/:task_id。
  c_task_get 的返回比 03-C 字面契约更完整——额外带上
  work_graph_run（含解析后的 graph_manifest）+ 每个 run 的
  work_node_execution 列表，因为 v_task_detail 的 to-do 树需要这份数据，
  03-C 已订正补全。
- c_org_loop_route（U-016 已实现 route_org_loop()，从未接 HTTP）第一次
  接上 POST /api/tasks/:task_id/route，v_task_detail 的人工干预
  （manual_resume）按钮需要它。
- 预算护栏此前没有任何读接口（03-C 只写了 PUT），新增
  budget_guardrail.list_budget_configs() + GET /api/settings/budget
  给仪表盘预算条用。

frontend/app.js 补上真实的 #/（org graph 三节点卡片、当前任务概要、
预算条、事件时间线，全部通过 c_ws_subscribe 实时刷新）、#/tasks
（关键字/状态/org_node 过滤）、#/tasks/:task_id（task 字段、to-do 树、
关联 artifact/bug_record、blocked_pending_human 告警条 + manual_resume
按钮）。路由改成对象形式支持挂载态清理，切页面时关掉上一个页面的
WebSocket 连接。v_graph_visualizer/v_log_viewer 子模块明确标成占位
提示（随 U-026/U-027 补上），不是假造内容。

顺带把 U-023 里因 c_task_list 当时不存在而简化的 related_task_id
换回真下拉，goal_composer/bug_feedback 提交成功后也改回跳转真实的
v_task_detail。

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

Python stdlib 没有 WebSocket 支持，src/ws_subscribe.py 手写 RFC 6455
握手（hashlib+base64 算 Sec-WebSocket-Accept）+ 帧编解码（服务端帧不
加掩码，客户端帧强制解掩码），不引入 websockets 之类第三方库
（05 §5.7）。

推送用轮询而非写路径 hook：execution_event 的写入分散在十几个调用点
（org_node_trigger/work_graph_execute/work_node_run/task_create/
bug_record/...），没有单一写入路径可以插桩，backend_server.py 的
_handle_ws_subscribe 劫持 ThreadingHTTPServer 连接后每 0.5 秒按
rowid 增量查一次 execution_event（project_id/可选 task_id 过滤），
轻松满足 REQ-12 的 ≤2 秒目标。断线重连按 03-C §3.14 走 REST 快照，不
在 WS 层做消息重放，新连接只看连接那一刻起的新事件。

daemon_threads = True 避免长连接 WS 线程阻塞进程退出。

验证：test_backend_server.py 用原始 socket 走真实握手+推送延迟断言；
另外用 Node 原生 WebSocket 客户端做跨实现互操作性验证，连真实运行的
服务器，从建连到收到 c_task_create 触发的真实推送全程走通。

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

c_task_create（U-009 已实现的 task_create.create_task()）第一次接上
POST /api/tasks。c_bug_report_create 此前完全没有实现，新增
bug_record.create_bug_report() + POST /api/bug-reports。

发现并订正 03-C 一处输入契约遗漏：c_bug_report_create 的
input_contract 没写 project_id，但 execution_event.project_id 是
NOT NULL、bug_record 表自己没有 project_id 列可以在 related_task_id
留空时兜底推导，字面上无法满足约束——按 c_task_create 同款处理方式把
project_id 变成必填，03-C 已订正。

frontend/app.js 补上 #/goals/new、#/bugs/new 真实交互；控制台还没有
"当前项目"状态的正式载体（v_dashboard 是 U-025 才做），project_id 暂存
localStorage，v_project_setup 创建成功时写入。related_task_id 因为
c_task_list 未被任何 Unit 认领，简化成文本输入而非下拉，等 U-025 补上
任务列表后再换。提交成功后原型写的是跳转 v_task_detail，该页面也是
U-025 才建，暂时改成原页面内展示确认信息。

端到端冒烟时额外发现一个真 bug：create_bug_report() 原本没校验
project_id/related_task_id 是否存在，坏 project_id 会在 execution_event
插入时触发未捕获的 IntegrityError，请求直接 500——补了存在性校验，
改为干净的 INVALID_PARAM/400。

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

c_pick_folder 补上 Windows（PowerShell FolderBrowserDialog）和 Linux
（zenity 优先、回退 kdialog）实现，三平台都覆盖到。c_project_create
（U-002 已实现的 project_scaffold.create_project()）第一次接上 HTTP
路由 POST /api/projects——backend_server.py 因此第一次需要持有 sqlite
连接，schema.connect() 加 check_same_thread=False 参数，配合
server.conn_lock 序列化 ThreadingHTTPServer 各请求线程的访问。
frontend/app.js 补上 #/setup 真实交互（选文件夹→校验 Git 仓库→非
Git 仓库二次确认→创建→跳转仪表盘），DOM class 命名对齐
docs/wireframes/v_project_setup.html。

REQ-11 完整 happy 用例（含创建 task）还需要 U-023 的
v_goal_composer/c_task_create，本 Unit 只完成 v_project_setup/
c_pick_folder/c_project_create 部分，development-plan.md 已记录。

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

frontend/{index.html,app.js,style.css}: no build step, no npm, vanilla JS
hash router (05 §5.7). Real page content is PH3 (U-022+, starting from
docs/wireframes/); this is only the empty shell + working navigation the
Done criterion asks for.

backend_server.py serves the 3 files via an exact-path whitelist (not a
generic static-file/directory server) -- no path-traversal surface to
reason about for 3 fixed files.

Verified in an actual browser this session (navigated to localhost, clicked
all 3 nav links, screenshotted each) rather than only trusting stdlib
tests -- a Python-only test can't exercise real hashchange/DOM behavior
without a JS engine. Nav highlighting and content swap both confirmed
working, no page reload, no build step.

7 new stdlib unittest cases covering what the server is actually
responsible for (static files served with correct content-type, 404 on
unknown GET path). 66 total across U-001-008, all passing.

This closes out PH0 (U-001~U-008) -- all three Phase-acceptance criteria
now hold for real: target-project directory scaffold, 15-table schema with
constraint tests, and a real claude --agent round-trip.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

Pure stdlib http.server (ThreadingHTTPServer), zero third-party deps --
enforced by an AST-based test that parses backend_server.py's own imports
and checks each against sys.stdlib_module_names, so this can't silently rot
if someone adds a dependency later (05 §5.7).

pick_folder(): macOS via `osascript 'choose folder'`; user-cancel maps to
{"selected_path": null} (03-C §3.-1: not an error), non-macOS or any other
osascript failure raises DialogUnavailableError -> HTTP 422
DIALOG_UNAVAILABLE. Windows/Linux native dialogs are PH3 (U-022).

Known gap, noted rather than papered over: the Done criterion asks for a
real popped dialog returning a real path, which needs an actual human
click -- not something this agent can do non-interactively. Verified
`osascript` itself is present and executes on this machine, and every code
path is covered by mocked tests, but the literal "did a human click a real
folder and get the right path back" check is still open for whoever runs
this interactively next.

12 new stdlib unittest cases (server start/stop, pick_folder success/
cancel/non-macOS/other-failure, the same 4 cases through the HTTP route,
zero-third-party-import check). 62 total across U-001-007 (60 real + 2
gated), all passing.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>