feat: add meeting notes reference capability

[enricopiovesan]

Summary

Add the governed meeting-notes.process reference capability, agent fixture, app manifest, workflow, runtime request, and deterministic local execution path.

Governing Spec

• 006-runtime-request-execution
• 007-workflow-registry-traversal
• 008-expedition-example-domain
• 017-ai-agent-packaging
• 033-http-json-api
• 044-application-bundle-manifest
• 046-public-cli-app-registration
• 054-public-scope-registry-ref
• 056-capability-publish
• 057-embeddable-runtime-host
• 058-workflow-pipeline-execution
• 031-supply-chain-hardening

Project Item

• Closes Add meeting-notes.process capability contract, WASM agent, and app manifest #532

What Changed

• Added the meeting-notes.process capability contract and workflow.
• Added the meeting-notes app/component manifests and checked-in WASM fixture package.
• Added deterministic extraction for action items, decisions, follow-ups, and summary.
• Added CLI tests and a meeting-notes smoke script covering agent inspect/execute, app validate/register, and HTTP execute.

Validation

• cargo fmt
• cargo test -p traverse-cli meeting_notes_process -- --nocapture
• cargo test -p traverse-cli -- --nocapture
• bash scripts/ci/meeting_notes_example_smoke.sh

Notes

The smoke script needs local server bind permission for the HTTP execute step.