fix: dynamically resolve CLI and template version from package.json

[QuantGeekDev]

Summary

• Replaces hardcoded 0.2.2 version strings in src/cli/index.ts and src/cli/project/create.ts with dynamic reads from the framework's package.json
• The CLI now reports the correct version and mcp create generates projects with the current framework version as a dependency
• Adds unit tests verifying no hardcoded versions remain

Test plan

• 3 new tests pass in tests/cli/cli-version.test.ts
• Run mcp create test-project and verify package.json has current version
• Run mcp --version and verify it matches package.json

Closes #117

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