Claude config draft PR

CLAUDE.md

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+# Claude Code Notes for kleros-v2
+
+Work style: telegraph; noun-phrases ok; drop filler/grammar; min tokens
+
+## Monorepo Structure
+
+Yarn workspaces monorepo:
+
+- `contracts/` - Solidity (Foundry + Hardhat)
+- `web/` - Frontend
+- `kleros-sdk/` - SDK
+- `kleros-app/` - App
+- `subgraph/` - TheGraph definitions
+- `bots/` - Automation
+- `services/` - Backend
+
+Shared: `eslint-config/`, `prettier-config/`, `tsconfig/`
+
+## Contracts Package
+
+### Foundry Installation
+
+```bash
+# Install foundryup (if not already installed)
+curl -L https://foundry.paradigm.xyz | bash
+
+# Run foundryup to install/update forge, cast, anvil, chisel
+export PATH="$PATH:/root/.foundry/bin" && foundryup
+```
+
+### Dependencies
+
+```bash
+# Install npm dependencies (required for OpenZeppelin, etc.)
+yarn install
+
+# Foundry submodules (forge-std, solmate) are auto-installed on first forge command
+```
+
+### Running Tests
+
+```bash
+# Run from repo root (foundry.toml is at root, contracts config in contracts/foundry.toml)
+export PATH="$PATH:/root/.foundry/bin" && forge test
+```
+
+### Contracts Structure
+
+- `contracts/src/` - Solidity source files
+- `contracts/test/foundry/` - Foundry test files
+- `contracts/foundry.toml` - Foundry config (Solc 0.8.30, Cancun EVM, via-ir enabled)
+- `remappings.txt` - Import path remappings (Foundry + Hardhat)
+
+### Contracts Known Issues
+
+File names must match contract names exactly (Linux case-sensitive):
+
+- `BlockHashRNG` contract → `BlockHashRNG.sol`, not `BlockhashRNG.sol`
+
+### Coding Style
+
+- Function params: `_` prefix, no suffix
+- Internal functions: `_` prefix, no `Internal` suffix
+- Upgradeable `version`: define in derived only, not base: `string public constant override version = "0.0.1";`
+
+## Audit Context
+
+Certora security audit fixes. PR: https://github.com/kleros/kleros-v2/pull/2209

contracts/foundry.lock

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+{
+  "lib/forge-std": {
+    "rev": "8f24d6b04c92975e0795b5868aa0d783251cdeaa"
+  },
+  "lib/solmate": {
+    "rev": "3998897acb502fa7b480f505138a6ae1842e8d10"
+  }
+}