feat(go-opencode): Add WebFetch tool for fetching web content#56

telnet2 merged 3 commits intomaintelnet2/opencode:mainfrom

claude/port-web-fetch-tool-01SYA8roD36VwcEyM5WwBotftelnet2/opencode:claude/port-web-fetch-tool-01SYA8roD36VwcEyM5WwBotfCopy head branch name to clipboard