Initial project skeleton: shared prompt, coordination, baseline

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

tests/baseline.md

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+# Baseline
+
+Re-slice the reference model with the current profile before any code changes, and
+fill this in. Phase 0 is not done until it is.
+
+Reference slice (2026-10-04, Bambu P2S, 0.20mm High Quality, 4 filaments, tower on):
+
+| | Model | Support | Flushed | Tower | Total |
+|---|---|---|---|---|---|
+| grams | 18.78 | 2.03 | 61.61 | 32.95 | 115.37 |
+
+Waste (Flushed + Tower): 94.56 g. Filament changes: 392. Print time: 11h52m.
+
+Flush volumes in that slice are unrecorded. Record the matrix and multiplier here
+for the new baseline.
+
+| Item | Value |
+|---|---|
+| Orca build commit | |
+| Build time | |
+| Flush matrix and multiplier | |
+| Flushed (g) | |
+| Tower (g) | |