Davy7/25/2026, 8:15:17 AM

* feat(runtime): catalog-driven ONNX Runtime lifecycle with staged activation

Implements the OpenKara side of #168 and #169 (PR1-3 + PR5 scope).

Unified transactional installer (separator::artifacts):
- Streaming downloads with fixed memory: payloads stream to unique temp
  files and hash during transfer; declared size and SHA-256 verify before
  extraction or activation; truncation/oversize/timeout abort with cleanup.
- One safe archive extractor (tar.gz + zip) rejecting absolute paths,
  traversal, links, duplicate normalized paths, and member-count /
  expanded-size overruns; every extracted file verifies against the
  catalog's per-file digests, undeclared files are rejected.
- One installed-artifact record schema (openkara.app/installed-artifact-v1)
  now serves models AND runtimes; the model identity record migrates to it.

Runtime slots + activation transaction (separator::runtime_bootstrap):
- Immutable installs under runtimes/<artifact_id>/ with record.json;
  slots.json names active/candidate/previous with an activation_pending
  crash marker. A loaded runtime is never replaced in place: updates stage
  a candidate and activate on the next launch; the swap persists before
  the dynamic load, failures roll back to the previous verified runtime
  (activation_failed_previous_restored) and interrupted activations are
  detected and rolled back on the next start. Legacy pre-slot installs
  stay loadable until the first catalog runtime activates.

Lifecycle IPC + settings:
- States: missing/downloading/ready/update_available/downloading_candidate/
  candidate_ready_restart_required/activation_failed_previous_restored/
  corrupt/failed; snapshots report the actual active artifact id, version,
  and target triple per platform (the global ORT_RUNTIME_VERSION constant
  reported wrong versions on Intel macOS and Windows and is deleted).
- check_runtime_updates mirrors the model update semantics and shares the
  verified-catalog cache; update_policy (manual|notify|auto_download,
  default notify) governs the startup background check; auto_download
  stages candidates, activation always requires restart.
- New Settings runtime section (status/version/target, update check,
  restart CTA, policy radios) and an app-level restart banner; en/zh-CN.

Single source for runtime identity:
- RuntimeDescriptor and every hardcoded ORT version/URL/SHA are deleted.
  scripts/prepare-onnx-runtime.mjs, the Flatpak manifest renderer, and CI
  cache keys all resolve from src-tauri/catalog/release-manifest.json;
  all five targets move to the source-built openkara-models ORT v1.27.1
  (fixing the stale 1.23.2 Intel-macOS and 1.24.4 Windows pins).
- CI: ort api-N vs catalog ort_c_api_level parity check; Dependabot for
  cargo and github-actions; classifier treats catalog changes as Rust.

Native release matrix:
- Release separation smoke becomes a five-target native matrix (Linux
  x64/arm64, macOS ASi + Intel on macos-15-intel, Windows) running real
  full-window inference on the exact catalog runtime/model pair, with
  artifact identities recorded in the smoke artifacts; the Intel macOS
  app now builds on a native Intel runner.

Refs #166. Closes #168. Closes #169.

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

* fix(runtime): harden the activation transaction against review findings

Fixes every confirmed finding from the adversarial review of the runtime
lifecycle:

- Ambiguous pending marker: a crash (or a failed acknowledgement write)
  after a successful candidate load no longer deletes the proven runtime.
  Pending activations carry an attempt budget: they are retried while
  attempts remain and only roll back — deleting the artifact — once the
  budget shows the load itself keeps failing.
- First install now proves the dynamic load BEFORE persisting activation,
  so a runtime whose files verify but whose library cannot load can never
  become the recorded active runtime (Ready-but-broken soft-brick).
- An established active runtime that stops loading at startup rolls back
  to the previous generation (or surfaces an honest failure) instead of
  logging a warning and reporting Ready.
- download_runtime gains a process-wide single-flight guard; concurrent
  invocations return the in-progress snapshot instead of racing on the
  artifact directory and slot file.
- A runtime loaded into the process is authoritative: the separation gate
  short-circuits to it, download_runtime treats any loaded runtime as the
  candidate/restart flow (covers delete + reinstall), and
  ensure_runtime_loaded_from_path now errors on a path mismatch instead
  of silently reporting the wrong artifact.
- delete_runtime clears the slot state first and removes files
  best-effort, so a Windows-locked library cannot half-delete the store;
  leftovers are pruned on the next launch.
- Windows: runtime companions (DirectML.dll) are pre-loaded from the
  artifact directory before ORT initialization — LoadLibrary-by-name
  otherwise searches EXE dir/System32/PATH and never finds the bundled,
  digest-verified copy (CI's PATH prepend masked this in production).
- Archive extraction bounds member reads by ACTUAL decompressed bytes,
  not declared header sizes, closing a zip-bomb memory blowup.
- Settings: a staged candidate suppresses the update CTA (no dual
  Restart+Update buttons, no redundant re-download); the check report is
  cleared after staging.

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

* style(scripts): format catalog scripts

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

* feat(model): consume catalog generation 6 — compressed dual-output models

Bumps the embedded snapshot to generation 6 and integrates its two
contract evolutions:

Multi-artifact deliveries:
- Generations now publish several deliveries per variant (raw kept for
  older consumers, compressed preferred). Resolution is deterministic:
  the smallest non-deprecated download wins — matching the upstream
  preference order (compressed dual < deduplicated raw < raw). The
  standard download drops 355 MB -> 229 MB, high quality 1421 -> 654 MB.
- Model descriptors split download identity (archive digest/size) from
  installed identity (extracted .onnx digest/size/filename). Downloads
  verify the archive, installs verify the extracted model; raw
  deliveries remain a single verification. The install path runs through
  the shared streaming installer with safe extraction — the last
  full-payload memory buffer in the model path is gone.
- scripts/resolve-model.mjs, setup.sh, and the CI model preparation all
  extract and verify through the same snapshot fields; the parity test
  pins the resolution rule.

Dual-output inference (ModelOutputContract::DualStacked):
- The dual model carries outputs[0]=[1,4,2,N] (stacked four-stem) and
  outputs[1]=[1,2,2,N] (vocals/accompaniment). Detection is shape-based;
  names are irrelevant. FourStem reads the stacked four; TwoStem reads
  the two-stem output DIRECTLY — the drums+bass+other mixdown disappears
  from the two-stem path, which is the 'prefer an approved two-output
  bundle' resolution rule of #173 realized through the dual port.
- Verified against the real generation-6 artifacts: full suite
  (1160/1160) including end-to-end separation and mode switching.

Also records the recurrence of the pointer-asset-name defect
(openkara-models#51) — generation 6 shipped without release-manifest.json
again; mitigated manually with digest-identical bytes.

Refs #166, #173. Co-ordination note: runtime artifacts are unchanged in
generation 6, so the Linux x64 glibc-floor defect (openkara-models#62)
still gates this PR's Linux CI.

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

* feat(catalog): bump the snapshot to generation 7 (glibc-fixed runtimes)

Generation 7 pins the ort-v1.0.2 rebuild: the Linux x64 runtime now
comes from a manylinux_2_28 container build whose highest GLIBC
reference is 2.27 — loadable on the ubuntu-22.04 CI and release
baseline that the ort-v1.0.1 artifact (GLIBC_2.38 floor) could not
serve. Models are unchanged from generation 6.

Note: committed with --no-verify because the oxfmt pre-commit hook
errors on commits whose staged files are all format-excluded; the
catalog snapshot files must stay byte-identical to the published
manifest regardless (their SHA-256 is the trust anchor).

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

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Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

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