MisarMail MCP Server v5.0.3

Changes

• fix(registry): the MCP namespace matches the GitHub owner verbatim (7762957)
• fix(publish): skip npm when the version is already there (1109278)
• feat(registry): publish to the official MCP registry from CI (7754bdc)
• fix(release): create-or-update instead of failing on an existing tag (2c49457)
• fix(publish): prepublishOnly called pnpm, which CI does not have (f19c32a)
• chore: move to the Misar-AI organisation (9efc1a9)
• chore(mcp): 5.0.3, CI/CD, and a package name that never existed (793c057)
• chore: sync from source (v3.0.0) (bf8126f)
• chore: sync from source (v3.0.0) (cf81671)