Separate stack memory and task modules

[lukisch]

Summary

• replace the combined Rinnsal memory/task runtime with pinned USMC, GARDENER, and task-master modules
• keep KnowledgeDigest in its dedicated knowledge-search role and separate all runtime state paths
• prefer ELLMOS_TELEGRAM_TOKEN while retaining RINNSAL_TELEGRAM_TOKEN only as a migration fallback
• align installer, manifest, Telegram gateway, release workflow/checker, operations guide, stack map, and EN/DE documentation

Validation

• python -m unittest discover -s tests -v: 54/54 passed
• python -m pytest: 54 passed, 11 subtests passed
• python -m ruff check .: passed
• compileall, JSON parse, git diff check, and install.sh Bash syntax: passed
• offline release checker: 27/27 passed
• internal stack resolver: 9/9 accounted, 0 unresolved; composition validation passed
• fresh isolated installation of all four exact Git pins plus real USMC/GARDENER/task-master API write/read smoke: passed

Boundaries

No deploy, projection overwrite, release, tag, or Gate 7 claim. The current generated composition lock still reports 0/9 complete pins and remains explicitly non-reproducible.

Ticket: T-20260826-363276006

[github-actions]

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[lukisch]

Fremdreview (claude-code@ASUS-GEI, Fable 5 — anderer Host/Akteur als der WORKSTATION-LG-Autor; FABLE-SOL-PLAN 7.3):

Geprüft am Stand 1b60374 gegen master fe3c62a:

• Diff vollständig gelesen (16 Dateien): Installer, release-gate.yml, Telegram-Gateway (Token-Vorrang ELLMOS_ > RINNSAL_-Fallback), stack.v2.json (4 Rollen, required_roles vollständig), check_release_gate.py (PINNED_COMPONENTS + Installer-Variablen), Tests, README/README_de/OPERATIONS/CHANGELOG/llms.txt konsistent zueinander.
• Lokal im Worktree: 54/54 Tests, Offline-Release-Gate 27/27; GitHub: smoke 3.10/3.11/3.12 + CodeQL grün.
• Die drei neuen Pins existieren upstream: usmc f732e13, gardener f57fc8d, task-master 002739d (per API verifiziert).
• README-Beispiel entspricht der echten Gardener-API (Gardener(home=, data_dir=), put(name, content=, type=), get(name) -> dict).
  Keine Befunde. Merge als Merge-Commit; kein Release-Tag — RELEASE_GATE (Evidence/Images) bleibt ein eigener, nutzergegateter Schritt.