* feat: enhance source map handling in NLS and private field conversion
- Implemented inline source maps in the NLS plugin to ensure accurate mapping from transformed source back to original.
- Modified `transformToPlaceholders` to return edits for source map adjustments.
- Added `adjustSourceMap` function to update source maps based on text edits in `convertPrivateFields`.
- Introduced tests for source map accuracy in both NLS and private field conversion scenarios.
- Updated documentation to reflect changes in source map handling and the rationale behind accepting column imprecision.
* address PR review: fix source name collision, guard unmapped segments, reorder mangle before NLS
- Implemented copyAllNonTsFiles() for transpile/dev builds to copy all non-TS files from src/ to output, aligning with previous gulp behavior.
- Retained copyResources() for production builds using curated resource patterns.
- Removed unnecessary devOnlyResourcePatterns and testFixturePatterns.
- Updated watch mode to accept any non-TS file changes.
