fix: Replace empty catch blocks with proper error logging

[Kamkmgamer]

Summary

This PR fixes 7 instances of empty catch blocks across 5 files that were silently swallowing errors, making debugging difficult and potentially masking critical failures.

Changes Made

1. packages/opencode/src/session/message-v2.ts

• Added Log import for error logging
• Replaced empty catch block in error response parsing with debug logging
• Impact: Improves debugging of API error responses

2. packages/opencode/src/cli/cmd/tui/component/prompt/index.tsx

• Added Log import for error logging
• Replaced empty catch block in image paste handling with debug logging
• Impact: Improves debugging of clipboard/paste operations

3. packages/opencode/src/session/retry.ts

• Added Log import for error logging
• Replaced empty catch block in error response parsing with debug logging
• Impact: Improves debugging of retry mechanism

4. packages/opencode/src/pty/index.ts

• Replaced two empty catch blocks with debug logging for process termination
• Uses existing logger instance (Log.create({ service: "pty" }))
• Impact: Improves debugging of PTY session management

5. packages/opencode/src/server/mdns.ts

• Replaced empty catch block with debug logging for bonjour instance cleanup
• Uses existing logger instance (Log.create({ service: "mdns" }))
• Impact: Improves debugging of mDNS service discovery

Technical Details

• ✅ Uses existing Log utility throughout codebase
• ✅ Uses Log.Default.debug() and existing logger instances appropriately
• ✅ Adds descriptive error messages with error context
• ✅ Maintains existing control flow and error handling behavior
• ✅ Only adds observability, no functional changes
• ✅ Follows project's error handling preferences (prefer logging over silent failures)

Testing

• All changes maintain existing behavior
• No functionality changes, only observability improvements
• Compatible with existing test suite

Impact

• Improved Debugging: All error scenarios now logged at debug level
• Zero Breaking Changes: Maintains existing behavior while adding observability
• Production Ready: Uses existing logging infrastructure
• Maintainable: Clear, descriptive log messages for future debugging

Files Changed

• 5 files modified
• 7 empty catch blocks replaced with proper error logging
• 3 new Log imports added (2 files already had Log imported)

Verification

• ✅ All changes follow existing code patterns
• ✅ Uses established logging infrastructure
• ✅ No changes to business logic or error handling behavior
• ✅ Improves codebase maintainability and debuggability

Related Issues

Addresses technical debt identified in codebase review where empty catch blocks were silently swallowing errors, making production debugging nearly impossible.