feat(issues): adopt the component trackers — one backlog, one numbering (ADR-0019)

ADR-0012 made docs/issues/ canonical for the management scope only and left
gitops, ThreadNet-Web and threadnet-call on GitLab "until the component adopts".
That split produced exactly what it invited: two numbering worlds where
management#20 and gitops#20 are different issues, drift nobody had to answer for
(gitops#61 carried no milestone since 2026-08-11), and component backlogs that
host sessions without lab access cannot read at all.

The 46 open component issues are now files 0056-0101. The file id is the
group-wide identifier; provenance lives in the frontmatter (new field `projekt`
plus gitlab_iid) and in the filename, so "gitops#61" still finds 0091. Bodies are
copied verbatim; comments and history stay on GitLab, as with the 2026-08-11
management import.

Both scripts learned the second dimension: spiegel_issues.py routes each file to
its origin project, reopens issues that are open in the repo but closed on the
board, and writes the new iid back after creating one; gruppenpruefung.py checks
drift across all four trackers instead of management alone. What the mirror
cannot decide stays a finding, not a silent state.

Two things needed a hand, both recorded in the files: gitops#61 had no milestone
(M1 - it is a live account-takeover path) and carried two area labels where the
schema holds one. The Gitea migration footers in the imported bodies point at
decommissioned trackers; their links are removed, the provenance sentence stays.

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

scripts/gruppenpruefung.py

@@ -14,8 +14,10 @@ zu überspringen, und jede Prüfung bildet einen real passierten Fall ab
   3. Meilenstein- und Prioritätspflicht über ALLE offenen
      Gruppen-Issues. (realer Fall: gitops#61, entstanden 2026-08-11,
      ohne Meilenstein)
-  4. Issue-Drift management ↔ docs/issues/ — Titel, Zustand,
-     Meilenstein, Priorität, Status-Label. (F-001/F-017-Klasse)
+  4. Issue-Drift GitLab ↔ docs/issues/ — Titel, Zustand, Meilenstein,
+     Priorität, Status-Label; seit ADR-0019 über management UND die
+     adoptierten Komponenten-Tracker (Feld `projekt`).
+     (F-001/F-017-Klasse)
   5. Git-Hygiene seit 2026-08-07 — Autor- und Committer-Zeit 12:00:00
      UTC, kanonische Identität; ausgenommen sind maschinelle Absender
      (MASCHINEN, per Adresse — ADR-0009). (F-002/F-003)
@@ -188,29 +190,39 @@ def main() -> int:
         if len(prios) != 1:
             befunde.append(f"{ref}: {len(prios)} priority-Labels statt 1")
 
-    # 4) Issue-Drift management ↔ docs/issues/
-    gl = {i["iid"]: i for i in
-          api(f"projects/{urllib.parse.quote(GRUPPE + '/management', safe='')}"
-              f"/issues?state=opened", token)}
+    # 4) Issue-Drift GitLab ↔ docs/issues/ (management + adoptierte
+    #    Komponenten-Tracker, ADR-0019)
+    spiegel_projekte = {
+        "management": "axion1337.chat/management",
+        "gitops": "axion1337.chat/axion1337.chat-gitops",
+        "threadnet-web": "axion1337.chat/ThreadNet-Web",
+        "threadnet-call": "axion1337.chat/threadnet-call",
+    }
+    gl = {}
+    for kurz, pfad in spiegel_projekte.items():
+        for i in api(f"projects/{urllib.parse.quote(pfad, safe='')}"
+                     f"/issues?state=opened", token):
+            gl[(kurz, i["iid"])] = i
     dateien = {}
     for f in sorted((root / "docs/issues").glob("[0-9]*.md")):
         meta = frontmatter(f)
+        proj = meta.get("projekt") or "management"
         if meta.get("gitlab_iid"):
-            dateien[int(meta["gitlab_iid"])] = (f, meta)
+            dateien[(proj, int(meta["gitlab_iid"]))] = (f, meta)
         elif meta.get("status") not in ("done", "rejected"):
             hinweise.append(f"{f.name}: noch nicht gespiegelt "
                             f"(gitlab_iid fehlt — erwartet bis zum "
                             f"ersten Spiegel-Lauf)")
-    for iid in sorted(set(gl) - set(dateien)):
-        befunde.append(f"management#{iid} ist offen auf GitLab, hat aber "
+    for proj, iid in sorted(set(gl) - set(dateien)):
+        befunde.append(f"{proj}#{iid} ist offen auf GitLab, hat aber "
                        f"keine kanonische Datei (zweites Backlog!)")
-    for iid, (f, meta) in sorted(dateien.items()):
-        if iid not in gl:
+    for (proj, iid), (f, meta) in sorted(dateien.items()):
+        if (proj, iid) not in gl:
             if meta.get("status") not in ("done", "rejected"):
                 befunde.append(f"{f.name}: offen im Repo, aber auf GitLab "
                                f"geschlossen/fehlend — nachziehen")
             continue
-        i = gl[iid]
+        i = gl[(proj, iid)]
         if titel(f) != i["title"].strip():
             befunde.append(f"{f.name}: Titel weicht von GitLab ab")
         ms = (i.get("milestone") or {}).get("title", "")