docs: unblock #115/#116 after Traverse Kotlin/.NET embedders shipped

[enricopiovesan]

Summary

Board hygiene after auditing stale Project 2 Blocked items:

• Moved #115 and #116 → Ready (Traverse #648 / #649 Done).
• Left #114 Blocked on Traverse #647.
• Updated AGENTS.md and README.md blocked/ready summaries to match the live board.

Definition of Done

• Project 2: Embed WASM runtime: Android Compose clients (traverse-starter + doc-approval) #115/Embed WASM runtime: Windows WinUI clients (traverse-starter + doc-approval) #116 Ready, Agent Unassigned
• Issue comments posted on Embed WASM runtime: Android Compose clients (traverse-starter + doc-approval) #115/Embed WASM runtime: Windows WinUI clients (traverse-starter + doc-approval) #116
• Docs reflect only Embed WASM runtime: Swift clients (iOS + macOS, traverse-starter + doc-approval) #114 as Blocked

Validation

gh project item-list 2 --owner traverse-framework --format json --limit 300 \
  --jq '.items[] | select(.content.number == 114 or .content.number == 115 or .content.number == 116) | {number: .content.number, status}'
# → 114 Blocked, 115 Ready, 116 Ready

Checklist

• Issue linked and Project 2 item updated
• Updated AGENTS.md platform / blocked summary if this changes platform status
• No business logic added to UI layer
• CI gates pass locally where applicable (docs-only)