Add WASM tests for npm workflow

- Add test-wasm job to npm.yml workflow
- Create tests/web.rs with smoke tests for:
  - Version check
  - t-test
  - Shapiro-Wilk
  - Mann-Whitney U
  - Pearson correlation
- Publish job now depends on passing tests

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: sipemu

.github/workflows/npm.yml

@@ -48,9 +48,26 @@ jobs:
           path: crates/anofox-statistics-js/pkg/
           retention-days: 1
 
+  test-wasm:
+    name: Test WebAssembly
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Rust
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          targets: wasm32-unknown-unknown
+
+      - name: Install wasm-pack
+        run: cargo install wasm-pack
+
+      - name: Run WASM tests
+        run: wasm-pack test --node crates/anofox-statistics-js
+
   publish-npm:
     name: Publish to npm
-    needs: [build-wasm]
+    needs: [build-wasm, test-wasm]
     runs-on: ubuntu-latest
     permissions:
       contents: read

AGENTS.md

@@ -0,0 +1,40 @@
+# Agent Instructions
+
+This project uses **bd** (beads) for issue tracking. Run `bd onboard` to get started.
+
+## Quick Reference
+
+```bash
+bd ready              # Find available work
+bd show <id>          # View issue details
+bd update <id> --status in_progress  # Claim work
+bd close <id>         # Complete work
+bd sync               # Sync with git
+```
+
+## Landing the Plane (Session Completion)
+
+**When ending a work session**, you MUST complete ALL steps below. Work is NOT complete until `git push` succeeds.
+
+**MANDATORY WORKFLOW:**
+
+1. **File issues for remaining work** - Create issues for anything that needs follow-up
+2. **Run quality gates** (if code changed) - Tests, linters, builds
+3. **Update issue status** - Close finished work, update in-progress items
+4. **PUSH TO REMOTE** - This is MANDATORY:
+   ```bash
+   git pull --rebase
+   bd sync
+   git push
+   git status  # MUST show "up to date with origin"
+   ```
+5. **Clean up** - Clear stashes, prune remote branches
+6. **Verify** - All changes committed AND pushed
+7. **Hand off** - Provide context for next session
+
+**CRITICAL RULES:**
+- Work is NOT complete until `git push` succeeds
+- NEVER stop before pushing - that leaves work stranded locally
+- NEVER say "ready to push when you are" - YOU must push
+- If push fails, resolve and retry until it succeeds
+

crates/anofox-statistics-js/tests/web.rs

@@ -0,0 +1,76 @@
+//! WASM integration tests for anofox-statistics-js
+
+#![cfg(target_arch = "wasm32")]
+
+use wasm_bindgen_test::*;
+
+use anofox_statistics_js::*;
+
+#[wasm_bindgen_test]
+fn test_version() {
+    let version = get_version();
+    assert!(!version.is_empty());
+    assert!(version.starts_with("0."));
+}
+
+#[wasm_bindgen_test]
+fn test_t_test() {
+    let x = js_sys::Float64Array::new_with_length(5);
+    x.copy_from(&[1.0, 2.0, 3.0, 4.0, 5.0]);
+
+    let y = js_sys::Float64Array::new_with_length(5);
+    y.copy_from(&[2.0, 3.0, 4.0, 5.0, 6.0]);
+
+    let result = js_t_test(
+        x.to_vec().as_slice(),
+        y.to_vec().as_slice(),
+        JsTTestKind::Welch,
+        JsAlternative::TwoSided,
+        Some(0.0),
+        Some(0.95),
+    );
+
+    assert!(result.is_ok());
+}
+
+#[wasm_bindgen_test]
+fn test_shapiro_wilk() {
+    let data = js_sys::Float64Array::new_with_length(10);
+    data.copy_from(&[2.3, 3.1, 2.8, 3.5, 2.9, 3.2, 2.7, 3.0, 2.6, 3.3]);
+
+    let result = js_shapiro_wilk(data.to_vec().as_slice());
+    assert!(result.is_ok());
+}
+
+#[wasm_bindgen_test]
+fn test_mann_whitney() {
+    let x = js_sys::Float64Array::new_with_length(5);
+    x.copy_from(&[1.0, 2.0, 3.0, 4.0, 5.0]);
+
+    let y = js_sys::Float64Array::new_with_length(5);
+    y.copy_from(&[3.0, 4.0, 5.0, 6.0, 7.0]);
+
+    let result = js_mann_whitney_u(
+        x.to_vec().as_slice(),
+        y.to_vec().as_slice(),
+        JsAlternative::TwoSided,
+        Some(true),
+        Some(false),
+        None,
+        Some(0.0),
+    );
+
+    assert!(result.is_ok());
+}
+
+#[wasm_bindgen_test]
+fn test_pearson_correlation() {
+    let x = js_sys::Float64Array::new_with_length(5);
+    x.copy_from(&[1.0, 2.0, 3.0, 4.0, 5.0]);
+
+    let y = js_sys::Float64Array::new_with_length(5);
+    y.copy_from(&[2.0, 4.0, 6.0, 8.0, 10.0]);
+
+    let result = js_pearson(x.to_vec().as_slice(), y.to_vec().as_slice(), Some(0.95));
+    assert!(result.is_ok());
+}