fix: normalize MCP tool JSON schemas (ensure array items) and wire up schema processing with tests

[jonathannorris]

Summary

• Fix: Ensure all array params in MCP tool JSON Schemas include items, resolving Copilot Chat validation error.
• Add: src/mcp/utils/schema.ts with toJsonSchema and processToolConfig (normalizes array schemas).
• Wire-up: Use schema processing in mcp-worker/src/index.ts and src/mcp/server.ts.
• Tests: Added src/mcp/utils/schema.test.ts with snapshot src/mcp/utils/__snapshots__/schema.test.ts.snap.

Why

• Copilot Chat failed tool validation with “tool parameters array type must have items” for tools like create_feature.

Impact

• Developer experience: Tools validate and run in Copilot Chat.
• No breaking changes: Runtime logic unchanged; only JSON Schema generation/normalization.

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Status	Name	Latest Commit	Updated (UTC)
❌ Deployment failed View logs	devcycle-mcp-server	082440b	Aug 11 2025, 06:15 PM