chore: add mcp server license metadata

[2lll5]

Summary

• add Apache-2.0 license metadata to @coinbase/cds-mcp-server
• keep runtime code, entrypoints, dependencies, and package files unchanged

Validation

• node -e "const p=require('./packages/mcp-server/package.json'); if (p.license !== 'Apache-2.0') process.exit(1)"
• (cd packages/mcp-server && npm pack --dry-run --json --ignore-scripts)
• git diff --check

[cb-heimdall]

🟡 Heimdall Review Status

Requirement	Status	More Info
Reviews	🟡 0/1	Denominator calculation Show calculation 1 if user is bot 0 1 if user is external 0 2 if repo is sensitive 0 From .codeflow.yml 1 Additional review requirements Show calculation Max 0 0 From CODEOWNERS 1 Global minimum 0 Max 1 1 1 if commit is unverified 1 Sum 2
CODEOWNERS	🟡 See below

🟡 CODEOWNERS

Code Owner	Status	Calculation
ui-systems-eng-team	🟡 0/1	Denominator calculation Additional CODEOWNERS Requirement Show calculation Sum 0 0 From CODEOWNERS 1 Sum 1