hara-gmail-mcp: add mark_read and archive tools (v0.2.0)

Adds two write-capable IMAP tools:
- gmail_mark_read: sets \Seen flag on a message
- gmail_archive: copies to [Gmail]/All Mail and removes from INBOX

The IMAP connection already used SELECT (read-write mode); this just
exposes the mutation surface through MCP.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

nixos/pkgs/hara-gmail-mcp/pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "hara-gmail-mcp"
-version = "0.1.0"
+version = "0.2.0"
 description = "Gmail MCP server for Hara (IMAP+SMTP, throwaway pre-OAuth2)"
 requires-python = ">=3.11"
 dependencies = [