- Remove all traceback.format_exc() from client responses (33 remaining instances)
- Sanitize str(e) from client-facing messages, replacing with generic error messages
- Replace ~65 bare print() calls with structured logger.exception/error/warning/info/debug
- Remove ~35 redundant inline `import traceback` and `import logging` statements
- Convert logging.error/warning calls to use module-level named logger
- Fix WiFi endpoints that created redundant inline logger instances
- Add logger.exception() at all WebInterfaceError.from_exception() call sites
- Fix from_exception() in errors.py to use safe messages instead of raw str(exception)
- Apply consistent [Tag] prefixes to all logger calls for production triage
Only safe, user-input-derived str(e) kept: json.JSONDecodeError handlers (400 responses).
Subprocess template print(stdout) calls preserved (not error logging).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
PR #282 narrowed bare except blocks but missed ConfigError from
config_manager.load_config(), which wraps FileNotFoundError,
JSONDecodeError, and OSError. Without this, a corrupt or missing
config crashes the display preview SSE endpoint instead of falling
back to 128x64 defaults.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
