Reorganize Blender Web execution around capabilities

docs/status/C1-001.md

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+# C1-001 Status
+
+status: done
+task: define_parity_levels
+gate: G1
+updated: 2026-08-23 America/New_York
+
+C1-001 defines the ordered L0-L5 parity contract and the fail-closed completion
+policy. L0/L1 cover read and observe evidence; L2-L5 require progressively
+stronger WASM mutation, persistence, operator semantics, and Chromium workflow
+receipts. Only explicit desktop-positive, WASM/Main-mutating, exact-persistence
+records with complete hashes may remain FEATURE_PARITY candidates.
+
+The focused contract test passed four assertions. Source bindings to the C0-003
+classification, cluster summary, and capability matrix are hash-verified. All
+context, governance, plan, index, source-hash, and diff gates exited 0.
+Corrective writes remain shadow-only with `queueMutation=false`; legacy
+completion and queue writes remain forbidden until C6-003.
+
+Evidence and manifest: `tests/golden/corrective/C1-001/`.
+Next corrective task: `C1-002`.