feat(cli): Add new check command for type checking and update compiler options handling

readme.plan.md

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+# Implementation Plan for tsbuild `check` Command
+
+## Overview
+Add a new `check` command to tsbuild that allows checking TypeScript files against a glob pattern without emitting them, similar to running the TypeScript compiler with the `--noEmit` flag.
+
+## Implementation Steps
+
+1. **Reread CLAUDE.md** to ensure we follow project guidelines
+
+2. **Extend TsBuild Class**
+   - The existing `TsBuild` class already has a `checkEmit()` method
+   - We can leverage this method for our implementation
+
+3. **Implement Check Command in CLI**
+   - Add a new `check` command to `tsbuild.cli.ts`
+   - Command should accept glob patterns as arguments
+   - Process glob patterns to find matching TypeScript files
+   - Use the `TsBuild` class to check the files without emitting
+
+4. **Update Exports**
+   - Ensure any new functionality is properly exported
+
+5. **Testing**
+   - Test the command with various glob patterns
+   - Verify error reporting works correctly
+
+## Differences from Existing `emitcheck` Command
+The `emitcheck` command already exists and checks specific files without emitting. Our new `check` command will:
+- Be designed specifically for checking files against glob patterns
+- Use a simpler, more intuitive command name
+- Potentially add additional benefits (like summary statistics of checked files)
+
+## Example Usage
+Once implemented, the command would work like this:
+
+```bash
+npx tsbuild check ts/**/* 
+npx tsbuild check "src/**/*.ts" "test/**/*.ts"
+```
+
+## Expected Output
+The command should:
+- Report any TypeScript errors in the matched files
+- Provide a count of files checked and any errors found
+- Exit with code 0 if successful, or 1 if errors are found