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FDN-28: Rueckstau-Drosselung vor dem DB-Verbindungspool #253

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patrick merged 4 commits from feature/fdn-28-rueckstau-drosselung-db-verbindungspool into main 2026-10-13 13:29:25 +02:00
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patrick commented 2026-10-13 12:56:27 +02:00
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DMS FDN-28 - Zulassungs-Gate (Semaphor) vor HTTP-Handlern und Hintergrundjobs: definierte 503/Retry-After statt roher Verbindungsfehler, Jobs backoffen statt Dead-Letter. 3/3 AK erfuellt. Hinweis: QA-10 ist entgegen urspruenglicher Ticket-Annahme noch NICHT gemergt - Fix wurde trotzdem gegen aktuellen main real getestet, siehe Pruefprotokoll. Siehe dms/docs/FDN-28-PRUEFPROTOKOLL.md.

DMS FDN-28 - Zulassungs-Gate (Semaphor) vor HTTP-Handlern und Hintergrundjobs: definierte 503/Retry-After statt roher Verbindungsfehler, Jobs backoffen statt Dead-Letter. 3/3 AK erfuellt. Hinweis: QA-10 ist entgegen urspruenglicher Ticket-Annahme noch NICHT gemergt - Fix wurde trotzdem gegen aktuellen main real getestet, siehe Pruefprotokoll. Siehe dms/docs/FDN-28-PRUEFPROTOKOLL.md.
patrick added 4 commits 2026-10-13 12:56:27 +02:00
FDN-28: zulassungs-gate vor db-zugriff (dbadmission) 5d117b3c14 
Gepuffertes Semaphor mit Wartezeit: HTTP-Middleware antwortet bei
Erschoepfung mit 503/Retry-After, Job-Middleware liefert einen
transienten statt dauerhaften Fehler (Backoff statt Dead-Letter).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
FDN-28: admission-gate in apiwiring.Chain verdrahtet a68db6b4b1 
ChainConfig.Admission/AdmissionRetryAfter, vor Authentifizierung/
Rechteentscheidung geschaltet (fruehester Ausstieg bei Ueberlast).
nil-Gate = unveraendertes Verhalten (Akzeptanzkriterium 3).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
FDN-28: admission-gate in app/worker aus Umgebung konfiguriert 3d00314123 
cmd/app: NEXARCH_DMS_APP_ADMISSION_MAX_CONCURRENT/_MAX_WAIT_SECONDS/
_RETRY_AFTER_SECONDS (Default 40/2s/5s, MAX_CONCURRENT=0 schaltet ab).
cmd/worker: rt.Middleware um dbadmission.JobMiddleware erweitert,
eigene NEXARCH_DMS_WORKER_ADMISSION_*-Variablen, ausserhalb der
bestehenden Error-Tracking-Middleware (Gate-Erschoepfung ist kein
gemeldeter Fehler, sondern erwarteter Rueckstau).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
FDN-28: pruefprotokoll
Core-Schnittstellen-Vertragstests / contract-tests (pull_request) Canceled after 0s
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Supply-Chain-Scan (Go) / govulncheck (pull_request) Canceled after 0s
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CI / DMS-Modul Supply-Chain-Scan (govulncheck) (pull_request) Canceled after 0s
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CI / Web-Barrierefreiheitspruefung (axe, Tastatur, Reflow, Textabstaende) (pull_request) Canceled after 0s
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CI / Web-Barrierefreiheitspruefung (axe, Tastatur, Reflow, Textabstaende) (push) Canceled after 0s
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CI / Web (dms-browser) (pull_request) Canceled after 0s
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CI / Web (pdf-viewer) (pull_request) Canceled after 0s
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CI / Web (shl) (pull_request) Canceled after 0s
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Supply-Chain-Scan (npm) / npm-audit (pull_request) Canceled after 0s
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Core-Pflichttest-Gate / pflichttest-gate (pull_request) Canceled after 0s
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CI / Core-Modul (Build/Vet/Test) (pull_request) Canceled after 0s
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CI / DMS Security-Test-Gate (AC5, Merge-Gate) (pull_request) Canceled after 0s
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CI / Connect Security-Test-Gate (QA-01 AC4, Merge-Gate) (pull_request) Canceled after 0s
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CI / Core-Modul (Build/Vet/Test) (push) Canceled after 0s
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CI / DMS Security-Test-Gate (AC5, Merge-Gate) (push) Canceled after 0s
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CI / Connect Security-Test-Gate (QA-01 AC4, Merge-Gate) (push) Canceled after 0s
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CI / DMS-Modul Supply-Chain-Scan (govulncheck) (push) Canceled after 0s
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CI / Web (dms-browser) (push) Canceled after 0s
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CI / Web (pdf-viewer) (push) Canceled after 0s
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CI / Web (shl) (push) Canceled after 0s
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RBAC-Rollenhierarchie-Pflichtgate / rbac-policy-invariant (pull_request) Canceled after 0s
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CI / DMS-Modul (Lint/Build/Test/Coverage/Artefakt) (pull_request) Canceled after 0s
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CI / DMS-Modul (Lint/Build/Test/Coverage/Artefakt) (push) Canceled after 0s
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3425495217 
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
patrick merged commit 783ce84e99 into main 2026-10-13 13:29:25 +02:00
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Reference: scripte/nexarch#253