Add preview and configurable column mapping for breadboard wiring CSV imports

[cdrogers]

Summary

This adds a breadboard wiring CSV import workflow with source preview, configurable column mapping, validation, DIP component resolution, and placement.

Screenshots

Import and mapping

• Preview source CSV data before making sketch changes
• Detect comma, semicolon, tab, and pipe delimiters
• Support UTF-8, UTF-8 BOM, and UTF-16 BOM input
• Detect whether the first row contains column names
• Suggest mappings from recognized column names
• Allow manual mapping of all supported fields
• Show source and mapped previews
• Remember confirmed mappings for matching column schemas
• Preserve one-sided component-evidence rows used during DIP resolution

Validation and placement

• Validate breadboard coordinate references and connector IDs
• Resolve 300 mil and 600 mil DIP geometry
• Prefer compatible native Fritzing components
• Support exact LibrePCB MPN resolution where available
• Request explicit confirmation where package geometry cannot be safely inferred
• Place the three RSR 03MB102 breadboards and resolved DIP components
• Preserve grouped undo and redo behavior
• Make no sketch changes until placement is confirmed

Validation performed

• 17/17 automated test cases passed
• 137/137 assertions passed
• Full Qt 6.10.3 release build completed successfully
• Dialog and Qt MOC objects compiled successfully
• All resulting objects and the application executable verified as macOS arm64
• Bundled LibrePCB resource manifest and SQLite integrity verified
• Application dependency, ad-hoc signature, and startup tests passed
• Original 294-record CSV imported and placed successfully
• Reordered semicolon-delimited manual-mapping fixture imported successfully
• Saved mapping restoration verified
• Placement undo and redo verified

Current scope

The placement workflow currently targets three RSR 03MB102 breadboards and supported 300 mil/600 mil DIP layouts. The mapping and parsing layer is designed to accept differing CSV column orders and supported delimiters rather than requiring one fixed source format.

[sonarqubecloud]

Quality Gate passed

Issues
78 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.7% Duplication on New Code

See analysis details on SonarQube Cloud