simplify error handling for first compile

[adhami3310]

we don't need to do these things anymore

[greptile-apps]

Greptile Summary

This PR simplifies error handling during the first compile phase of Reflex applications by removing complex exception handling logic from two key functions. The changes remove approximately 61 lines of code that previously provided sophisticated error handling with colorized output.

In reflex/utils/prerequisites.py, the compile_or_validate_app function was significantly streamlined. Previously, it wrapped compilation/validation calls in a try-catch block that would capture all exceptions, attempt to print colorized tracebacks using Python 3.13's sys.exception() functionality, and return a boolean indicating success or failure. The new implementation simply calls compile_app() or validate_app() directly without any error handling wrapper, allowing exceptions to propagate naturally to the caller. The function also no longer returns a boolean value, implicitly returning None.

In reflex/reflex.py, the _run function was updated to remove validation result checking. Previously, it would store the result from compile_or_validate_app (either from a direct call or from a ProcessPoolExecutor future) and raise a click.exceptions.Exit(1) if validation failed. Now it simply calls the compilation/validation function and continues execution regardless of the outcome.

These changes represent a shift from a fail-fast approach with detailed error reporting to a more permissive approach where compilation errors are handled at a higher level in the call stack. The removal of the colorization logic and _can_colorize() helper function also eliminates dependencies on importlib.util and io modules. This aligns with the codebase's architecture where the _should_compile method in app.py already handles compilation decision logic through environment variables and file checks.

Confidence score: 3/5

• This change removes important error handling that could mask compilation failures during app startup
• The removal of validation result checking means compilation errors that previously caused graceful exits will now either propagate as unhandled exceptions or be silently ignored
• Files reflex/utils/prerequisites.py and reflex/reflex.py need more attention to ensure error handling is properly managed elsewhere in the codebase

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[codspeed-hq]

CodSpeed Performance Report

Merging #5628 will not alter performance

_{Comparing remove-sys-exception-call (1016c91) with main (9d9ff9e)}

Summary

✅ 8 untouched benchmarks