Handle errors correctly in code

Implement standardized error handling patterns

Ensuring consistent error handling across a codebase without boilerplate.

• · Error types
• · Handling strategy
• · Logging level

• · Error handler module
• · Usage examples

Error types and handling strategy defined; logging framework in place.

Over-broad catch handlers; swallowed errors; poor error context.

• · Follows industry error handling conventions
• · Prevents silent failures
• · Structured logging