feat(link): 連結一律寫成 [文字](絕對網址)，寫入前先驗證連得到

取消 [[頁名]] 與 [[顯示文字|頁名]] 兩種同 wiki 寫法，不再分「同存取庫」與
「跨存取庫」兩條規則。那種寫法只在自己那個 wiki 內解析，寫錯不報錯，畫面上
看起來像普通文字或死連結，巡不到也修不了。

連結寫進頁面前先過 jsc-gitea 的 link-check.sh，結束碼 0 才寫。驗證一律走 API，
不看網頁狀態碼：私有存取庫的網頁網址對未登入請求一律回 404，拿狀態碼判會把
好連結判成壞的。認證失敗回 7，與死連結的 1 分開，免得金鑰一過期就把還在的頁
整批判死。

skills/hooks-install/SKILL.md

@@ -75,7 +75,7 @@ The detailed flow **MUST run as a sub agent**; the main agent only reports the s
    5. `tools/scan-hook-errors.sh --cli {cli}` — only claude keeps hook results in its native records and can answer `clean` or `errors`; codex, copilot, antigravity and kiro answer `unavailable`, and their runtime evidence comes from the smoke stage alone. Exit 0 covers both `clean` and `unavailable`, exit 1 is `errors` and every entry with `jsc=true` goes to step 3, exit 2 is a bad CLI name.
 
    Done when every detected CLI has exactly one verdict line per stage, no stage exited 2, the smoke stage's `lines` count matches its own assertion, the four non-claude CLIs are reported as `unavailable` rather than clean on the scan stage, and antigravity and kiro carry the note that their hook firing is unverified.
-3. For each error — a failed purge, a failed wiring, an `unwired` status, a failed smoke, or a scanned error with `jsc=true` — run `tools/report-error.sh --hook {script name} --exit {code} --summary "{reason}" --cli {cli}` with the script's `[jsc]` output on stdin, then hand the failure to `jsc-hooks:repair`, which **MUST run as a sub agent** and must finish by opening a PR against `develop`. Aborting the remaining installs here is allowed as long as the repair starts. The error page and the error directory page live in two different wiki repos, resolved separately: the page through `wiki-repo ERROR`, the directory through `wiki-repo CONTENTS`. Exit 0 with an `ERROR_{HASH}` page name and URL on stdout means the page was written; the same exit 0 with a `[jsc]` line on stderr still means the page landed, and that line says what is missing — either the directory repo would not resolve, so nothing indexes the page, or the page URL could not be read back, so the page name comes out on its own — carry that note into step 4. Exit 0 with no output at all means the run ended on one of the quiet-degradation reasons listed in the script's own header — no `gitea.sh` on the path, the error page's wiki repo unresolved, the hash not computed, or a temp file not created — so no page was written at all and that reason goes into step 4 instead; exit 2 means the call itself was malformed — `--hook` or `--summary` is missing — so fix the arguments and rerun the same call; exit 4 means the wiki record did not land, so report the failure text and still start the repair — a page that could not be written is no reason to leave a broken hook wired. Exit 4 covers two cases, and the report has to say which: a failed write, or the script refusing to write the error directory page because it could not read the old one back. That directory is appended to, never overwritten: every row on it is somebody else's error report, so the script reads the page, adds this run's row, and writes the whole page. Only a genuine 404 (`wiki-get` exit 4) means the page is not there yet and lets it build one from the template. An invalid key (exit 7) or any other API failure (exit 8) leaves the old rows unknown, so it skips the directory write and names the code instead — writing a fresh template over a directory it never read would erase every earlier report, with no merge and no backup behind it. A scanned error with `jsc=false` belongs to a third-party hook: report it and leave it alone. Skip this step when every CLI passed all five stages. Done when every error carries one `ERROR_{HASH}` result — a page name with its URL, a page name plus the reason the URL is missing, or the recorded reason no page was written — and one repair PR URL against `develop`.
+3. For each error — a failed purge, a failed wiring, an `unwired` status, a failed smoke, or a scanned error with `jsc=true` — run `tools/report-error.sh --hook {script name} --exit {code} --summary "{reason}" --cli {cli}` with the script's `[jsc]` output on stdin, then hand the failure to `jsc-hooks:repair`, which **MUST run as a sub agent** and must finish by opening a PR against `develop`. Aborting the remaining installs here is allowed as long as the repair starts. The error page and the error directory page live in two different wiki repos, resolved separately: the page through `wiki-repo ERROR`, the directory through `wiki-repo CONTENTS`. Exit 0 with an `ERROR_{HASH}` page name and URL on stdout means the page was written; the same exit 0 with a `[jsc]` line on stderr still means the page landed, and that line says what is missing — the directory repo would not resolve, so nothing indexes the page; the page URL could not be read back, so the page name comes out on its own; or the URL failed the reachability check, so the directory row carries the page name as plain text with no link — carry that note into step 4. Every link on that row is written as `[{text}]({url})` with the URL from `gitea.sh wiki-url`, and the script checks it with `jsc-gitea/tools/link-check.sh` before writing: exit 0 writes the link, anything else keeps the row and drops the link, and none of it changes the exit code — this is the failure-reporting path, so a failed report must never become a second failure. Exit 0 with no output at all means the run ended on one of the quiet-degradation reasons listed in the script's own header — no `gitea.sh` on the path, the error page's wiki repo unresolved, the hash not computed, or a temp file not created — so no page was written at all and that reason goes into step 4 instead; exit 2 means the call itself was malformed — `--hook` or `--summary` is missing — so fix the arguments and rerun the same call; exit 4 means the wiki record did not land, so report the failure text and still start the repair — a page that could not be written is no reason to leave a broken hook wired. Exit 4 covers two cases, and the report has to say which: a failed write, or the script refusing to write the error directory page because it could not read the old one back. That directory is appended to, never overwritten: every row on it is somebody else's error report, so the script reads the page, adds this run's row, and writes the whole page. Only a genuine 404 (`wiki-get` exit 4) means the page is not there yet and lets it build one from the template. An invalid key (exit 7) or any other API failure (exit 8) leaves the old rows unknown, so it skips the directory write and names the code instead — writing a fresh template over a directory it never read would erase every earlier report, with no merge and no backup behind it. A scanned error with `jsc=false` belongs to a third-party hook: report it and leave it alone. Skip this step when every CLI passed all five stages. Done when every error carries one `ERROR_{HASH}` result — a page name with its URL, a page name plus the reason the URL is missing, or the recorded reason no page was written — and one repair PR URL against `develop`.
 4. Report five results per CLI — purge, wiring, status, smoke, scan — each with the reason its script printed, plus the smoke `lines` count, any `ERROR_{HASH}` page name and every repair PR URL. Done when every detected CLI appears with one verdict per stage and every repair has a PR against `develop`.
 
 ## Notes