release prep: rc.1 baseline and gating updates

process/wave2_baseline.md

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+# Wave 2 Baseline (Frozen)
+
+## Snapshot Date
+- 2026-03-01
+
+## Pre-Wave Counts (Frozen)
+- `spec/pid_matrix.csv` rows: 59
+- Support tier counts (pre-wave):
+  - `full`: 14
+  - `candidate-readonly`: 15
+  - `detect-only`: 30
+- `spec/command_matrix.csv` rows (pre-wave): 37
+
+## Hardware Reality (Current)
+- Available fixtures: JP108 line and Ultimate2 line only.
+- Non-owned devices must remain `candidate-readonly` until strict promotion signals are complete.
+
+## Required Checks Baseline
+Branch protection for `main` must require:
+- `guard`
+- `aur-validate`
+- `tui-smoke-test`
+- `build-macos-arm64`
+- `test`
+- `hardware-108jp`
+- `hardware-ultimate2`
+
+## Promotion Policy
+Promotion from `candidate-readonly` to `full` requires all 3 signals:
+1. static dossier evidence,
+2. runtime sanitized traces,
+3. hardware read/write/readback confirmation.