feat(sdlc): 四階段收尾一律回報

What：新增 tools/stage-report.sh 與 references/stage-report.md，四支階段技能各加一步收尾回報：模型能力標籤判定、工作日誌連結、所有寫入的 wiki 連結；實作階段再加工作目錄與來源、工作、目標三條分支。

Why：階段跑完該交代什麼是固定的，寫在內文靠模型自己記，少一項看不出來。沒寫工作日誌更是如此——內容只留在對話裡，換一個工作階段就沒了。

How：彙整搬到程式層。頁名換絕對網址、commit 數與推送狀態由 git 現查、來源分支在不在遠端也由腳本判定；模型閘門那一列只轉述 sdlc-gate.sh report，不自評。沒有工作日誌就警告使用者檢查，並把內容交給 jsc-log 的暫存區，下次寫日誌一併寫入。結束碼 1 是警告不是阻擋，提前停下來也要回報。

Who：跑 SDLC 四階段的人，以及接手看紀錄的人。

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

skills/implement/SKILL.md

@@ -1,6 +1,6 @@
 ---
 name: implement
-description: SDLC implementation stage. Gate on capability tags enforced in code by sdlc-gate (implement requires coding), then confirm the analysis page's source branch - it is both the worktree base and the PR target. An unmerged work package PR is a hard gate enforced in code by tools/wp-gate.sh: it reads every PR comment, sub agents fix them in the original worktree, and no next package starts until that PR merges. Claim a ready work package from ANALYZE_CONTENTS with a work ticket, confirm a delivery package's content type, then complete its TDD todos one at a time inside a worktree built from origin/{source-branch}, updating the wiki after every item, closing with jsc-review code-review, one PR back to the source branch, the chosen delivery document and an optional MAINTAIN_CONTENTS entry. Use when analysis is done and code must be written; not for planning or analysis.
+description: SDLC implementation stage. Gate on capability tags enforced in code by sdlc-gate (implement requires coding), then confirm the analysis page's source branch - it is both the worktree base and the PR target. An unmerged work package PR is a hard gate enforced in code by tools/wp-gate.sh: it reads every PR comment, sub agents fix them in the original worktree, and no next package starts until that PR merges. Claim a ready work package from ANALYZE_CONTENTS with a work ticket, confirm a delivery package's content type, then complete its TDD todos one at a time inside a worktree built from origin/{source-branch}, updating the wiki after every item, closing with jsc-review code-review, one PR back to the source branch, the chosen delivery document, an optional MAINTAIN_CONTENTS entry, and a tools/stage-report.sh report covering the model tag verdict, the worklog link, every wiki link written, the worktree and the three branches. Use when analysis is done and code must be written; not for planning or analysis.
 ---
 
 # implement
@@ -49,6 +49,12 @@ All wiki reads and writes go through `jsc-gitea:wiki`.
     4. Issue comment: confirm the issue number with the user (propose the one referenced by the work package or the PR; never guess), then post via `jsc-gitea/tools/gitea.sh api POST /repos/{owner}/{repo}/issues/{n}/comments` with the body passed in as a UTF-8 file — real newlines, never a literal `\n`.
     5. Completion condition: the chosen format has actually been produced, and you have reported where it landed (wiki page name, or the comment URL).
 13. Ask per `jsc-ask:ask` rules whether to register this project for maintenance: append to `MAINTAIN_CONTENTS` with `templates/maintain-contents.md`. Required: repository `{owner}/{repo}`, maintenance method, start date. Optional: end date (NULL = maintain forever), last-maintained time. Completion condition: the user has answered, and a chosen registration is saved on the wiki.
+14. **Stage report — the last thing this stage does, including every early stop** (the work package gate blocked, no work package was selectable, the source branch was missing from the remote). Run `tools/stage-report.sh implement` with:
+    - one `--page TYPE:{page}` per wiki page this run wrote — `ANALYZE_{HASH}`, `DELIVER_{HASH}` and `DELIVER_CONTENTS`, `MAINTAIN_CONTENTS`;
+    - `--worklog` and `--worklog-heading` when a work log entry exists; otherwise write this stage's log content to a file and pass `--pending-file {file} --log-hash {HASH}`, which holds it for the next `jsc-log:worklog` run;
+    - `--worktree {path} --source-branch {name} --work-branch {name} --pr {url}` — the script reads the commit count, the push state and whether the source branch exists on the remote by itself, so pass the names, not your own count.
+
+    Rules and exit codes: `references/stage-report.md`. Exit 1 is a warning, never a block. Completion condition: the script's output is reported to the user verbatim, and it names the worktree, all three branches and every wiki page this run wrote.
 
 ## Rules