feat(nvsim): full simulator stack — Rust crate, dashboard, server, App Store, Ghost Murmur [ADR-089/090/091/092/093]

.github/workflows/dashboard-a11y.yml

@@ -0,0 +1,45 @@
+name: Dashboard a11y + cross-browser
+
+# Runs axe-core a11y assertions on the built dashboard across
+# Chromium, Firefox, and WebKit. Closes ADR-092 §11.5 (axe-core)
+# and §11.8 (cross-browser).
+
+on:
+  push:
+    branches: [main]
+    paths: ['dashboard/**', 'v2/crates/nvsim/**']
+  pull_request:
+    paths: ['dashboard/**']
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+jobs:
+  a11y:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: dtolnay/rust-toolchain@stable
+        with: { targets: wasm32-unknown-unknown }
+
+      - run: cargo install wasm-pack --locked --version 0.13.x || true
+
+      - name: Build nvsim WASM
+        working-directory: v2
+        run: |
+          wasm-pack build crates/nvsim --target web \
+            --out-dir ../../dashboard/public/nvsim-pkg \
+            --release -- --no-default-features --features wasm
+
+      - uses: actions/setup-node@v4
+        with: { node-version: 20, cache: npm, cache-dependency-path: dashboard/package-lock.json }
+
+      - working-directory: dashboard
+        run: |
+          npm ci
+          npm install --save-dev @playwright/test @axe-core/playwright
+          npx playwright install --with-deps
+          npm run build
+          npx playwright test

.github/workflows/dashboard-pages.yml

@@ -0,0 +1,85 @@
+name: nvsim Dashboard → GitHub Pages
+
+# Deploys the nvsim Vite/Lit dashboard to gh-pages/nvsim/ — preserving
+# the existing observatory/, pose-fusion/, and root index.html demos
+# already published from gh-pages. ADR-092 §9.
+
+on:
+  push:
+    branches: [main]
+    paths:
+      - 'v2/crates/nvsim/**'
+      - 'dashboard/**'
+      - '.github/workflows/dashboard-pages.yml'
+  workflow_dispatch:
+
+permissions:
+  contents: write
+
+concurrency:
+  group: dashboard-pages
+  cancel-in-progress: true
+
+jobs:
+  build-and-deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout main
+        uses: actions/checkout@v4
+
+      - name: Install Rust + wasm32 target
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          targets: wasm32-unknown-unknown
+
+      - name: Cache cargo registry
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cargo/registry
+            ~/.cargo/git
+            v2/target
+          key: ${{ runner.os }}-cargo-nvsim-${{ hashFiles('v2/Cargo.lock') }}
+          restore-keys: ${{ runner.os }}-cargo-nvsim-
+
+      - name: Install wasm-pack
+        run: cargo install wasm-pack --locked --version 0.13.x || true
+
+      - name: Build nvsim WASM
+        working-directory: v2
+        run: |
+          wasm-pack build crates/nvsim \
+            --target web \
+            --out-dir ../../dashboard/public/nvsim-pkg \
+            --release \
+            -- --no-default-features --features wasm
+
+      - name: Setup Node 20
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: npm
+          cache-dependency-path: dashboard/package-lock.json
+
+      - name: Install dashboard deps
+        working-directory: dashboard
+        run: npm ci
+
+      - name: Build dashboard
+        working-directory: dashboard
+        env:
+          NVSIM_BASE: /RuView/nvsim/
+        run: npm run build
+
+      - name: Deploy to gh-pages/nvsim/
+        uses: peaceiris/actions-gh-pages@v4
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          publish_dir: ./dashboard/dist
+          destination_dir: nvsim
+          # CRITICAL: preserves observatory/, pose-fusion/, root index.html
+          # and any other RuView demos already on gh-pages.
+          keep_files: true
+          commit_message: 'deploy(nvsim): ${{ github.sha }}'
+          user_name: 'github-actions[bot]'
+          user_email: 'github-actions[bot]@users.noreply.github.com'

.github/workflows/nvsim-server-docker.yml

@@ -0,0 +1,69 @@
+name: nvsim-server → ghcr.io
+
+# Builds and publishes the nvsim-server Docker image to ghcr.io on:
+# - push to main affecting nvsim-server or nvsim
+# - tag push matching nvsim-server-v*
+# - manual workflow_dispatch
+#
+# ADR-092 §6.2 + §9.4.
+
+on:
+  push:
+    branches: [main]
+    paths:
+      - 'v2/crates/nvsim-server/**'
+      - 'v2/crates/nvsim/**'
+      - '.github/workflows/nvsim-server-docker.yml'
+    tags: ['nvsim-server-v*']
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  packages: write
+
+jobs:
+  build-and-publish:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: docker/setup-buildx-action@v3
+
+      - uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ghcr.io/ruvnet/nvsim-server
+          tags: |
+            type=ref,event=branch
+            type=ref,event=tag
+            type=sha,format=short
+            type=raw,value=latest,enable={{is_default_branch}}
+
+      - name: Build + push
+        uses: docker/build-push-action@v5
+        with:
+          context: v2
+          file: v2/crates/nvsim-server/Dockerfile
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+          platforms: linux/amd64
+
+      - name: Smoke-test the image
+        run: |
+          docker pull ghcr.io/ruvnet/nvsim-server:sha-${GITHUB_SHA::7} || \
+            docker pull ghcr.io/ruvnet/nvsim-server:latest
+          docker run --rm -d --name nvsim-test -p 7878:7878 \
+            ghcr.io/ruvnet/nvsim-server:latest
+          sleep 4
+          curl -fsS http://localhost:7878/api/health
+          docker stop nvsim-test

CHANGELOG.md

@@ -7,6 +7,25 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Added
+- **`nvsim` crate — deterministic NV-diamond magnetometer pipeline simulator** (ADR-089) —
+  New standalone leaf crate at `v2/crates/nvsim` modeling a forward-only
+  magnetic sensing path: scene → source synthesis (Biot–Savart, dipole,
+  current loop, ferrous induced moment) → material attenuation
+  (Air/Drywall/Brick/Concrete/Reinforced/SteelSheet) → NV ensemble
+  (4 〈111〉 axes, ODMR linear-readout proxy, shot-noise floor per
+  Wolf 2015 / Barry 2020) → 16-bit ADC + lock-in demodulation →
+  fixed-layout `MagFrame` records → SHA-256 witness. Six-pass build
+  per `docs/research/quantum-sensing/15-nvsim-implementation-plan.md`.
+  50 tests, ~4.5 M samples/s on x86_64 (4500× the Cortex-A53 1 kHz
+  acceptance gate), pinned reference witness
+  `cc8de9b01b0ff5bd97a6c17848a3f156c174ea7589d0888164a441584ec593b4`
+  for byte-equivalence regression. WASM-ready by construction
+  (zero `std::time/fs/env/process/thread`); builds cleanly for
+  `wasm32-unknown-unknown`. ADR-090 (Proposed, conditional) tracks the
+  optional Lindblad/Hamiltonian extension if AC magnetometry, MW power
+  saturation, hyperfine spectroscopy, or pulsed protocols become required.
+
 ### Fixed
 - **Ghost skeletons in live UI with multi-node ESP32 setups** (#420, ADR-082) —
   `tracker_bridge::tracker_to_person_detections` documented itself as filtering

CLAUDE.md

@@ -22,6 +22,7 @@ Dual codebase: Python v1 (`v1/`) and Rust port (`v2/`).
 | `wifi-densepose-sensing-server` | Lightweight Axum server for WiFi sensing UI |
 | `wifi-densepose-wifiscan` | Multi-BSSID WiFi scanning (ADR-022) |
 | `wifi-densepose-vitals` | ESP32 CSI-grade vital sign extraction (ADR-021) |
+| `nvsim` | Deterministic NV-diamond magnetometer pipeline simulator (ADR-089) — standalone leaf, WASM-ready |
 
 ### RuvSense Modules (`signal/src/ruvsense/`)
 | Module | Purpose |

dashboard/.gitignore

@@ -0,0 +1,5 @@
+node_modules
+dist
+.vite
+*.log
+public/nvsim-pkg

dashboard/index.html

@@ -0,0 +1,18 @@
+<!doctype html>
+<html lang="en" data-theme="dark">
+<head>
+  <meta charset="utf-8" />
+  <meta name="viewport" content="width=device-width, initial-scale=1, viewport-fit=cover" />
+  <title>RuView · nvsim — NV-Diamond Magnetometer Simulator</title>
+  <meta name="description" content="Deterministic forward simulator for NV-diamond magnetometry. WASM-backed CW-ODMR pipeline with witness-grade SHA-256 proofs." />
+  <meta name="theme-color" content="#0d1117" />
+  <link rel="icon" type="image/svg+xml" href="data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'><rect width='32' height='32' rx='6' fill='%23e6a86b'/><text x='16' y='22' text-anchor='middle' font-family='monospace' font-weight='700' font-size='14' fill='%231a0f00'>NV</text></svg>" />
+  <link rel="preconnect" href="https://fonts.googleapis.com">
+  <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
+  <link href="https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap" rel="stylesheet">
+</head>
+<body>
+  <nv-app></nv-app>
+  <script type="module" src="/src/main.ts"></script>
+</body>
+</html>