📦 deps(thirdparty): update snapshots

2026-05-29 08:33:53 +00:00
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+# Bug-Type Playbooks
+
+Investigation focus and techniques by bug category.
+
+## Runtime Errors
+
+Crashes, exceptions, uncaught errors.
+
+**Investigation focus:**
+- Stack trace analysis (line, function, call chain)
+- Variable state at crash point
+- Input values that trigger crash
+- Environment differences (dev vs prod)
+
+**Common causes:**
+- Null/undefined access
+- Type mismatches
+- Array out of bounds
+- Missing error handling
+- Resource exhaustion
+
+**Techniques:**
+- Add try-catch with detailed logging
+- Validate assumptions with assertions
+- Check null/undefined before access
+- Log input values before processing
+
+## Logic Bugs
+
+Wrong result, unexpected behavior.
+
+**Investigation focus:**
+- Expected vs actual output comparison
+- Data transformations step by step
+- Conditional logic evaluation
+- State changes over time
+
+**Common causes:**
+- Off-by-one errors
+- Incorrect comparison operators
+- Wrong order of operations
+- Missing edge case handling
+- State not reset between operations
+
+**Techniques:**
+- Print intermediate values
+- Step through with debugger
+- Write test cases for edge cases
+- Check loop boundaries
+
+## Integration Failures
+
+API, database, external service issues.
+
+**Investigation focus:**
+- Request/response logging
+- Network traffic inspection
+- Authentication/authorization
+- Data format mismatches
+- Timing and timeouts
+
+**Common causes:**
+- API version mismatch
+- Authentication token expired
+- Wrong content-type headers
+- Data serialization differences
+- Network timeout too short
+- Rate limiting
+
+**Techniques:**
+- Log full request/response
+- Test with curl/httpie directly
+- Check API documentation version
+- Verify credentials and permissions
+- Monitor network timing
+
+## Intermittent Issues
+
+Works sometimes, fails others.
+
+**Investigation focus:**
+- What's different when it fails?
+- Timing dependencies
+- Shared state/resources
+- External conditions
+- Concurrency issues
+
+**Common causes:**
+- Race conditions
+- Cache inconsistency
+- Clock/timezone issues
+- Resource contention
+- External service flakiness
+
+**Techniques:**
+- Add timestamps to all logs
+- Run many times to find pattern
+- Check for async operations
+- Look for shared mutable state
+- Test under different loads
+
+## Performance Issues
+
+Slow, memory leaks, high CPU.
+
+**Investigation focus:**
+- Profiling and metrics
+- Resource usage over time
+- Algorithm complexity
+- Data volume scaling
+- Memory allocation patterns
+
+**Common causes:**
+- N+1 queries
+- Inefficient algorithms
+- Memory leaks (unreleased resources)
+- Excessive allocations
+- Missing indexes
+- Unbounded caching
+
+**Techniques:**
+- Profile with appropriate tools
+- Measure time/memory at checkpoints
+- Test with various data sizes
+- Check for cleanup in destructors
+- Monitor resource usage trends