M01: add sgm denoiser_scaling, discretizer, DiffusionEngine, GeneralConditioner stubs; M01_run3 and M01_summary

Made-with: Cursor

docs/milestones/M01/M01_run3.md

@@ -0,0 +1,84 @@
+# M01 CI Run 3 — Stub Repositories (Iterative)
+
+**Date:** 2026-03-08  
+**Branch:** m01-ci-truthfulness  
+**Trigger:** Stub repository approach (ac965561 → 1d3c4dcb)
+
+---
+
+## 1. Workflow Identity
+
+| Workflow | Run ID | Status |
+|----------|--------|--------|
+| Linter | 22810292142 | ✓ success |
+| Tests | 22810292144 | ✗ failure |
+
+---
+
+## 2. Approach
+
+**Stub repositories** instead of cache/submodules:
+
+- `scripts/dev/create_stub_repos.py` creates minimal `repositories/` layout
+- Satisfies `paths.py` assertion and import chain
+- Deterministic, no network, no cloning
+
+---
+
+## 3. Stub Progression (by run)
+
+| Run | Blocker | Fix |
+|-----|---------|-----|
+| 22810169638 | `paths.py` assert (ddpm.py) | Add ddpm.py stub |
+| 22810208301 | `LatentDiffusion` import | Add LatentDiffusion, LatentDepth2ImageDiffusion to ddpm |
+| 22810246639 | `ldm.util` | Add ldm.util.default |
+| 22810246639 | `ldm.modules.midas` | Add ldm.modules.midas |
+| 22810292144 | `sgm.models` | Add sgm.models.diffusion |
+| 22810326719 | `sgm.modules.diffusionmodules.denoiser_scaling` | Add denoiser_scaling, discretizer, DiffusionEngine, GeneralConditioner |
+
+---
+
+## 4. Current Stub Layout
+
+```
+repositories/
+  stable-diffusion-stability-ai/
+    ldm/
+      models/diffusion/ddpm.py (LatentDiffusion, LatentDepth2ImageDiffusion)
+      util.py (default)
+      modules/
+        encoders/modules.py (FrozenCLIPEmbedder, FrozenOpenCLIPEmbedder, CLIPTextModel)
+        attention/ (CrossAttention)
+        diffusionmodules/model.py (AttnBlock)
+        midas/
+  generative-models/
+    sgm/
+      models/diffusion/ (DiffusionEngine)
+      modules/
+        encoders/modules.py
+        attention/ (CrossAttention, SDP_IS_AVAILABLE, XFORMERS_IS_AVAILABLE)
+        diffusionmodules/ (model, denoiser_scaling, discretizer, openaimodel)
+        conditioner.py (GeneralConditioner)
+  k-diffusion/
+  BLIP/
+  stable-diffusion-webui-assets/
+```
+
+---
+
+## 5. Remaining Blocker (Run 22810326719)
+
+```
+ModuleNotFoundError: No module named 'sgm.modules.diffusionmodules.denoiser_scaling'
+```
+
+Fix applied in next commit: add denoiser_scaling, discretizer, DiffusionEngine, GeneralConditioner, openaimodel stubs.
+
+---
+
+## 6. Next Steps
+
+- Push stub additions
+- Run CI
+- If more import errors: add stubs iteratively
+- When server starts: verify pytest and coverage pass

docs/milestones/M01/M01_summary.md

@@ -0,0 +1,75 @@
+# M01 Summary — CI Truthfulness & Guardrails
+
+**Milestone:** M01  
+**Branch:** m01-ci-truthfulness  
+**Status:** In Progress (stub iteration)
+
+---
+
+## Accomplished
+
+| Item | Status |
+|------|--------|
+| Same-repo PR CI | ✓ Removed skip condition |
+| CLIP/pkg_resources fix | ✓ `--no-build-isolation` in launch_utils |
+| `--skip-prepare-environment` | ✓ CI uses deterministic bootstrap |
+| `--exit` handling | ✓ Early exit when skip-prepare + --exit |
+| Install runtime deps | ✓ torch, clip, open_clip, requirements_versions |
+| pip-audit | ✓ Non-blocking |
+| SHA-pinned actions | ✓ |
+| .gitattributes | ✓ |
+| Smoke step | ✓ |
+| Coverage threshold | ✓ --cov-fail-under=60 |
+| Stub repositories | ✓ scripts/dev/create_stub_repos.py |
+
+---
+
+## Remaining Blocker
+
+**Server startup fails** due to deep import chain from `ldm` and `sgm` packages.
+
+With `--skip-prepare-environment`, no repos are cloned. The app expects `repositories/` to exist and imports from them at runtime.
+
+**Solution:** Stub repositories (deterministic, no network).
+
+**Progress:** Iterative stub addition. Each CI run reveals one more missing import. Stubs added so far:
+
+- paths.py assertion (ddpm.py)
+- LatentDiffusion, LatentDepth2ImageDiffusion
+- ldm.util.default
+- ldm.modules.attention, diffusionmodules.model, midas
+- sgm.modules.encoders, attention, diffusionmodules
+- sgm.models.diffusion (DiffusionEngine)
+- sgm.modules.diffusionmodules.denoiser_scaling, discretizer
+- sgm.modules.GeneralConditioner, openaimodel
+
+---
+
+## CI Flow (Current)
+
+```
+install deps → pip-audit → create stub repositories → setup env → smoke → start server → pytest → coverage
+```
+
+---
+
+## Definition of Done (Status)
+
+- [x] CI runs on push and pull_request
+- [x] Linter: PASS
+- [ ] Tests: PASS (blocked: server startup)
+- [ ] Coverage threshold enforced
+- [x] pip-audit runs
+- [x] All actions pinned to SHAs
+- [x] .gitattributes present
+- [ ] docs/serena.md updated (when M01 closes)
+
+---
+
+## When M01 Closes
+
+1. Stub iteration completes (server starts, pytest passes)
+2. Update docs/serena.md ledger
+3. Generate M01_audit.md
+4. Merge m01-ci-truthfulness
+5. Tag milestone