chore(dx): add Husky hooks for local commit linting and staged file l…

.gitignore

@@ -13,6 +13,10 @@
 
 # Dependency directories
 vendor/
+node_modules/
+
+# Node lockfiles (root dev tooling only — dashboard uses its own)
+package-lock.json
 
 # Go workspace file
 go.work

.husky/commit-msg

@@ -0,0 +1 @@
+npx --no -- commitlint --edit $1

.husky/pre-commit

@@ -0,0 +1 @@
+npx lint-staged

CHANGELOG.md

@@ -11,6 +11,21 @@ Versions map to GitHub pull requests; the project does not use semver tags yet.
 
 ---
 
+## [0.10.0] - 2026-03-24 - PR #11: Husky local DX hooks
+
+### Added
+
+- Root `package.json` with Husky 9, commitlint, lint-staged, and
+  markdownlint-cli as dev dependencies.
+- `.husky/commit-msg` — runs `commitlint` on every local commit, enforcing
+  the same conventional commit rules already checked in CI. Bad commit
+  messages are rejected instantly, before any push.
+- `.husky/pre-commit` — runs `lint-staged` on staged files. Currently lints
+  any staged `*.md` files with markdownlint.
+- `node_modules/` and root `package-lock.json` added to `.gitignore`.
+
+---
+
 ## [0.9.0] - 2026-03-24 - PR #10: Docker build validation on every PR
 
 ### Fixed

PROGRESS.md

@@ -91,6 +91,7 @@ Items not yet started, ordered roughly by priority.
 
 - [x] Build (no push) Docker images on PRs so broken Dockerfiles are caught
       before merge.
+- [x] Husky local DX hooks (commit-msg + pre-commit with lint-staged)
 - [ ] Replace the `go get` workaround in Dockerfiles with properly committed
       `go.mod` / `go.sum` files (requires Go installed in the dev environment
       or a CI step that commits updated module files).

package.json

@@ -0,0 +1,17 @@
+{
+  "name": "onchain-health-monitor",
+  "private": true,
+  "scripts": {
+    "prepare": "husky"
+  },
+  "devDependencies": {
+    "@commitlint/cli": "^19.3.0",
+    "@commitlint/config-conventional": "^19.2.2",
+    "husky": "^9.1.6",
+    "lint-staged": "^15.2.10",
+    "markdownlint-cli": "^0.44.0"
+  },
+  "lint-staged": {
+    "*.md": "markdownlint --ignore node_modules --ignore vendor"
+  }
+}