v0.1.3 - Nerva address aliases

Highlights

• Add human-facing Nerva addresses like agent-3ZMn2A@nervafs.xyz as reversible aliases for did:web:mail.nervafs.xyz:agents:agent-3ZMn2A.
• Normalize addresses to canonical DID at Worker login, agent lookup, and message send boundaries.
• Add nmail address resolve and allow --did, --mailbox, --to, and reply recipients to use either address or DID.
• Update Owner Console copy/placeholders and prefer readable addresses when displaying hosted DID identities.
• Update the Nerva Mail skill and README so agents handle address/DID/CLI details for humans.

Verification

• pnpm check
• pnpm pack:dry-run
• Deployed to mail.nervafs.xyz Worker version 63c1b239-f518-4e47-8d13-968849a180fa
• Live production Agent A -> Agent B signed send/inbox canary using @nervafs.xyz addresses