chore(research): sync current 002A core into A3

.github/workflows/showroom-integrity.yml

@@ -6,17 +6,23 @@ on:
   pull_request:
     branches: [main]
 
+concurrency:
+  # Showroom integrity is repo-wide, but only the latest commit for a branch/PR
+  # needs to consume runner capacity. Supersede stale automatic validations.
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   validate-ring0:
     name: Ring 0 Buildability Audit
     runs-on: ubuntu-latest
     if: github.repository == 'Luminous-Dynamics/symthaea'
     steps:
       - uses: actions/checkout@v4
-      
+
       - name: Install Rust
         uses: dtolnay/rust-toolchain@stable
-        
+
       - name: Verify Metadata
         run: cargo metadata --no-deps --format-version 1
 
@@ -27,6 +33,6 @@ jobs:
         run: |
           # Ensure no forbidden dependencies
           ! rg -i 'mycelix|prism|holochain|swarm|robotics|symtropy-robotics|zero.?knowledge|zkp|pqc|private monorepo|internal only' .
-          
+
           # Check license
           head -n 5 LICENSE | grep "GNU AFFERO GENERAL PUBLIC LICENSE"

.github/workflows/sym-arch-001.yml

@@ -0,0 +1,120 @@
+# SYM-ARCH-001 concluded on 2026-08-25 with a frozen NEGATIVE verdict.
+#
+# Ordinary pull requests now perform only implementation regression checks on the
+# exact historical experiment surface. The full campaign is intentionally manual:
+# a later reproduction must not be mistaken for a second confirmatory sample or
+# overwrite the durable result in docs/research/SYM_ARCH_001_RESULT_2026-08-25.md.
+name: SYM-ARCH-001 Architecture Discrimination
+
+on:
+  pull_request:
+    branches: [main]
+    paths:
+      - '.github/workflows/sym-arch-001.yml'
+      - 'crates/domains/symthaea-psych-bench/src/benchmarks/architecture.rs'
+      - 'crates/domains/symthaea-psych-bench/src/benchmarks/mod.rs'
+      - 'crates/domains/symthaea-psych-bench/src/bin/sym_arch_001.rs'
+      - 'crates/domains/symthaea-psych-bench/Cargo.toml'
+      - 'docs/research/SYM_ARCH_001_PREREGISTRATION_2026-08-24.md'
+  workflow_dispatch:
+
+concurrency:
+  # Automatic branch runs supersede stale queued/running checks. Manual historical
+  # reproductions are deliberate evidence requests and therefore never cancel one
+  # another or get cancelled by a subsequent push.
+  group: ${{ github.workflow }}-${{ github.ref }}-${{ github.event_name == 'workflow_dispatch' && github.run_id || 'auto' }}
+  cancel-in-progress: true
+
+permissions:
+  contents: read
+
+env:
+  CARGO_TERM_COLOR: always
+  RUST_BACKTRACE: 1
+
+jobs:
+  sym-arch-001:
+    name: Historical experiment regression / reproduction
+    runs-on: ubuntu-latest
+    timeout-minutes: 30
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Rust
+        uses: dtolnay/rust-toolchain@1.96.0
+
+      - name: Cache cargo
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cargo/registry
+            ~/.cargo/git
+            target
+          key: ${{ runner.os }}-sym-arch-001-${{ hashFiles('**/Cargo.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-sym-arch-001-
+
+      - name: Compile and run experiment unit tests
+        run: |
+          cargo test -p symthaea-psych-bench --lib benchmarks::architecture -- --nocapture
+          cargo check -p symthaea-psych-bench --bin sym_arch_001
+
+      - name: Run historical SYM-ARCH-001 reproduction
+        if: github.event_name == 'workflow_dispatch'
+        run: |
+          cargo run -p symthaea-psych-bench --bin sym_arch_001 --release -- \
+            --output artifacts/sym-arch-001-reproduction/report.json
+
+      - name: Validate and summarize reproduction evidence
+        if: github.event_name == 'workflow_dispatch'
+        run: |
+          python3 - <<'PY'
+          import json
+          from pathlib import Path
+
+          path = Path('artifacts/sym-arch-001-reproduction/report.json')
+          report = json.loads(path.read_text())
+          assert report['schema'] == 'symthaea.sym-arch-001.v1'
+          assert report['decision']['verdict'] in {'PASS', 'MIXED', 'NULL', 'NEGATIVE'}
+          assert len(report['agents']) == 5
+          assert all(len(a['per_seed']) == 16 for a in report['agents'])
+
+          print('=== SYM-ARCH-001 historical reproduction ===')
+          print('reproduction verdict:', report['decision']['verdict'])
+          print('frozen scientific verdict remains: NEGATIVE (2026-08-25)')
+          for a in report['agents']:
+              print(
+                  f"{a['agent']:20s} "
+                  f"retention={a['retention']['mean']:.3f} "
+                  f"composition={a['compositional']['mean']:.3f} "
+                  f"forgetting={a['forgetting']['mean']:.3f} "
+                  f"reversal={a['reversal_final']['mean']:.3f} "
+                  f"latency={a['reversal_latency']['mean']:.1f}"
+              )
+
+          summary = Path(__import__('os').environ['GITHUB_STEP_SUMMARY'])
+          with summary.open('a') as f:
+              f.write('## SYM-ARCH-001 historical reproduction\n\n')
+              f.write('This run is a **reproducibility/regression check**, not a new confirmatory sample.\n\n')
+              f.write('The frozen scientific verdict remains **`NEGATIVE` (2026-08-25)** and is recorded in `docs/research/SYM_ARCH_001_RESULT_2026-08-25.md`.\n\n')
+              f.write(f"**Reproduction verdict:** `{report['decision']['verdict']}`\n\n")
+              f.write('| agent | retention | composition | forgetting ↓ | reversal | latency ↓ |\n')
+              f.write('|---|---:|---:|---:|---:|---:|\n')
+              for a in report['agents']:
+                  f.write(
+                      f"| `{a['agent']}` | {a['retention']['mean']:.3f} | "
+                      f"{a['compositional']['mean']:.3f} | {a['forgetting']['mean']:.3f} | "
+                      f"{a['reversal_final']['mean']:.3f} | {a['reversal_latency']['mean']:.1f} |\n"
+                  )
+          PY
+          sha256sum artifacts/sym-arch-001-reproduction/report.json \
+            | tee artifacts/sym-arch-001-reproduction/SHA256SUMS
+
+      - name: Upload historical reproduction artifact
+        if: github.event_name == 'workflow_dispatch'
+        uses: actions/upload-artifact@v4
+        with:
+          name: sym-arch-001-reproduction-${{ github.sha }}
+          path: artifacts/sym-arch-001-reproduction/
+          retention-days: 90

.github/workflows/sym-arch-002a-core.yml

@@ -14,6 +14,12 @@ on:
       - 'Cargo.lock'
   workflow_dispatch:
 
+concurrency:
+  # Keep only the latest automatic run for a branch. Manual dispatch remains
+  # non-cancellable because it is a deliberate request for a definitive run.
+  group: ${{ github.workflow }}-${{ github.ref }}-${{ github.event_name == 'workflow_dispatch' && github.run_id || 'auto' }}
+  cancel-in-progress: true
+
 permissions:
   contents: read