mDNS docs + global server config

[opencode-agent[bot]]

Commits Reviewed

• b2f45d574 introduces a user-facing feature: optional mDNS service discovery (--mdns) plus new server config block.
• 390b0a79b changes behavior: network/server config is read from global config (not merged project config) for these commands.
• 52b99622a, a15397cd8, da394439a, 1e2ef07c9, 664e6bf2d are either internal, generated, nix, tests, or error-context improvements that don’t warrant docs updates.

Docs Updates Made (Undocumented User-Facing Pieces)

• Documented --mdns for the default tui command: packages/web/src/content/docs/cli.mdx:22
• Documented --mdns for opencode acp: packages/web/src/content/docs/cli.mdx:441
• Clarified that server config is read from global config (~/.config/opencode/opencode.json): packages/web/src/content/docs/config.mdx:123
• Added a short “mDNS discovery” explainer and updated usage to include --mdns: packages/web/src/content/docs/server.mdx:13

Validation

• Docs build passes: bun run build in packages/web/ (warnings present but build succeeded).

Triggered by scheduled workflow

opencode session  |  github run