43 implement dao

.editorconfig

@@ -0,0 +1,12 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+indent_style = space
+indent_size = 2
+
+[*.{md,txt}]
+trim_trailing_whitespace = false

.github/workflows/ci.yml

@@ -7,14 +7,34 @@
     branches: [main]
 
 jobs:
+  format:
+    name: Format (biome + aiken)
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: "20"
+          cache: npm
+          cache-dependency-path: package-lock.json
+      - name: Install
+        run: npm ci
+      - name: Biome format check
+        run: npm run format:check
+      - uses: aiken-lang/setup-aiken@v1
+        with:
+          version: v1.1.22
+      - name: aiken fmt check (onchain)
+        working-directory: onchain
+        run: aiken fmt --check
   onchain:
     name: On-chain (aiken)
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
       - uses: aiken-lang/setup-aiken@v1
         with:
-          version: v1.1.21
+          version: v1.1.22
       # Cache fetched Aiken dependencies (the analog of node_modules), keyed on
       # the resolved lockfile so a dependency bump invalidates it.
       - name: Cache Aiken packages

.gitignore

@@ -1,4 +1,10 @@
 # Keep the repository documentation tracked
 !docs/*
 !specs/*
+
+# Agents
+.opencode
+.agents
 .claude
+
+node_modules/

.husky/pre-commit

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

README.md

@@ -78,6 +78,20 @@ aiken check    # run tests
 
 The off-chain layer provides TypeScript builders (MeshJS) and Tx3 implementations under `offchain/`.
 
+## Formatting
+
+Formatting is enforced automatically:
+
+- **TypeScript/JavaScript/JSON** — [Biome](https://biomejs.dev) with the repo-level `biome.json` config.
+- **Aiken** — `aiken fmt` with the compiler version pinned in `onchain/aiken.toml`.
+
+A pre-commit hook (Husky + lint-staged) formats staged files on every commit, and CI fails on unformatted code. To format everything at once:
+
+```sh
+npm install    # once, from the repo root
+npm run format
+```
+
 ## Documentation
 
 - [Product Requirements (PRD)](docs/PRD.md) — what we ship, goals, catalog.

biome.json

@@ -0,0 +1,39 @@
+{
+  "$schema": "https://biomejs.dev/schemas/2.5.9/schema.json",
+  "files": {
+    "includes": [
+      "**",
+      "!**/node_modules",
+      "!**/dist",
+      "!**/*.tsbuildinfo",
+      "!**/package-lock.json",
+      "!offchain/tx3/devnet/genesis/**",
+      "!onchain/**",
+      "!formal/**",
+      "!logs/**",
+      "!.opencode/**",
+      "!.husky/**",
+      "!.git/**"
+    ]
+  },
+  "formatter": {
+    "enabled": true,
+    "indentStyle": "space",
+    "indentWidth": 2,
+    "lineWidth": 80,
+    "lineEnding": "lf"
+  },
+  "javascript": {
+    "formatter": {
+      "quoteStyle": "double",
+      "semicolons": "always",
+      "trailingCommas": "all",
+      "arrowParentheses": "always"
+    }
+  },
+  "json": {
+    "formatter": {
+      "enabled": true
+    }
+  }
+}