feat(studio): bind mixer tracks and optional SFX video with the picker

[IAnMove]

Summary

G1-C2: Mixer base/overlays and optional SFX video use AssetInput.

• Tracks keep independent offset/volume/duration.
• Catalog picks set server paths; duration comes from metadata probe.
• SFX video is optional and can be removed.

Test plan

• mixerSfxPicker.test.tsx (2)
• eslint

---

Note

Medium Risk
Changes how mixer and MMAudio SFX inputs resolve media paths, but mirrors existing studio picker wiring and keeps generation params the same shape.

Overview
Mixer and SFX sidebar controls now pick media through the shared AssetInput flow instead of FileUploadZone plus direct uploads.

For the mixer, the base track and overlay slots load workspace audio catalog items (or local/device picks via the dual-origin UI). Selection sets backend paths via studioMediaPath and duration via applyChosenStudioMedia; offset/volume/mix behavior is unchanged. For SFX, the optional video guide uses the same pattern with workspace video items and still drives video_guide / duration when metadata is available.

Adds mixerSfxPicker.test.tsx to assert both surfaces expose library + computer origins without auto-opening the asset explorer, and registers the test in the architecture wire inventory.

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[github-actions]

PR Review — Loreframe Studio

Risk: low
Scope: 4 file(s); +141/-67; React UI

Automated review from scripts/analyze_pr.py. This is a heuristic pass (no LLM) so humans still own the merge decision.

Findings

• low — UI changed — rebuild before merge
  Run cd ui && npm run build (CI already does this). Pinokio Update rebuilds for end users; keep ui/dist untracked.

Changed files

• added: ui/tests/mixerSfxPicker.test.tsx
• modified: tests/fixtures/architecture_wire_inventory.json, ui/src/components/Sidebar/MixerControls.tsx, ui/src/components/Sidebar/SfxControls.tsx

CONTRIBUTING checklist

• python scripts/verify_clean_repo.py
• python -m compileall -q app/services app/launch.py scripts
• cd ui && npm run build if the UI changed
• No weights, CivitAI sidecars, or generated guides
• Stays local-first (no required accounts / telemetry)

Posted by the repo PR review workflow. Re-runs on each push to the PR.

[github-actions]

Code health

Quality score: 54.7/100

Higher is better. The score is a trend dashboard; the independent ratchet below remains the CI gate.

Component	Weight	Current	Change
Cyclomatic health	45%	54.3	-0.1
File concentration	25%	61.3	+0.0
Oversized-file debt	20%	36.9	+0.0
Modularity	10%	75.0	+0.0

Change vs PR base: +0.0 points.

Metric	Value
Production LOC	264,015
Production files	698
Test LOC	92,831
Functions measured	17,026
Functions complexity ≥ 15	833
Maximum complexity	672
Policy	code-health-policy-v1
HEAD	a851d9f0ee0e1dca079f54acb66146c8f6a5da5e
Base	156e58d7b592a06a957748d81762ca394c50ff8a
UI measurement	complete

Markdown, JSON catalogs and tests are out of this table. Only app/ runtime + ui/src TS/JS count.

Most complex functions

Complexity	Where
672	app/wgp.py:7219 generate_video
381	ui/src/stores/useStore.ts:4053 Async method 'startGeneration'
355	app/_launch_runtime.py:23563 _run_generation
308	app/wgp.py:12359 generate_video_tab
268	ui/src/stores/useStore.ts:8600 Async method 'loadSettingsFromOutput'
258	app/services/director/planners/short_film.py:3433 ShortFilmPlanner._plan_story_driven
258	ui/src/components/Sidebar/SceneAnimatorPanel.tsx:493 Function 'SceneAnimatorPanel'
248	app/services/director_pipeline.py:13607 _run_video_generation
245	app/services/director_pipeline.py:7712 _run_pipeline
244	ui/src/features/agent/agentActions.ts:1145 Function 'parseAction'
226	app/services/director_pipeline.py:6541 update_comic_preview
225	ui/src/features/agent/agentActions.ts:2892 Async function 'executeAgentActions'

Trend vs baseline

Metric	Δ
Production LOC	-7
Test LOC	+75
Functions ≥ 15	+0
Maximum complexity	+0

Ratchet passed.