feat(server): improve server startup error handling#1224
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Add structured error handling for server startup failures: - Catch Bun.serve() errors and wrap in ServerStartError NamedError - Pass through original Bun error messages (e.g., "Failed to start server. Is port 4096 in use?") - Format errors in FormatError() to display user-friendly messages - Prevents generic "unexpected error" messages for common server startup issues
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…andling Merged from: anomalyco#1224 Author: @braden-w Auto-merged by opencode-fork integration system
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Previously, when users ran the
opencode servecommand and the default port 4096 was already in use, they would see an unexpected error message:The implementation wraps Bun.serve() calls in try-catch blocks and maps them into
ServerStartErrorerrors using the established NamedError pattern. The original Bun error message (like "Failed to start server. Is port 4096 in use?") is preserved and displayed directly to users via the FormatError system.