Feat/opencode support

[KBryan]

Work Done:

Add modular opencode configuration for improved AI agent integration:

• .opencode/config.json - main configuration with project metadata
• AGENTS.md - comprehensive agent instructions at repo root
• .opencode/tasks/ - 4 reusable task definitions:
  • build.json - build all packages
  • typecheck.json - TypeScript type checking
  • lint.json - linting and formatting checks
  • cli-dev.json - run CLI in development mode
• .opencode/workflows/ - 2 workflow compositions:
  • ci.json - full CI pipeline (typecheck + lint + build)
  • new-command.json - interactive new command creation
• .opencode/README.md - documentation for extending config.

The modular structure allows easy updates by:

• Separating individual tasks into reusable JSON files
• Composing workflows from existing tasks
• Providing clear documentation for future extensions
  This setup enables running: opencode task and opencode workflow
  for common development operations."

[claude]

Code review

Found 4 issues. Checked for bugs and CLAUDE.md compliance.

1. Bug: test script overwrites workspace-wide test runner (package.json:15)
On main, this script is pnpm -r --if-present run test which recursively runs tests across all workspace packages. Replacing it with the opencode config validator means pnpm test at the repo root will no longer execute any real project tests. The test:opencode alias on the next line already provides a dedicated way to run these config checks.

2. CLAUDE.md violation: node instead of tsx (AGENTS.md:42)
CLAUDE.md states tsx packages/polygon-agent-cli/src/index.ts runs the CLI directly from source (tsx handles .js to .ts remapping for workspace packages). Using bare node will not handle this remapping.

3. Factual inaccuracy: stale references (AGENTS.md:9-13)
packages/connector-ui/ does not exist (renamed to packages/agentconnect-ui/). dapp-client.ts no longer exists in src/lib/ (replaced by oms-client.ts in V3 OMS migration). Commands list is missing polymarket.ts. Per team standards: reference file paths, never enumerate contents.

4. Team standard: missing changeset (package.json:16)
This repo uses @changesets/cli with release and ci:publish scripts. Per team standards: Include changesets for workspace package modifications. This PR modifies the root package.json scripts but does not include a changeset file in .changeset/.