Allow overriding files with Plugins, just warn about it

[riebecj]

This fixes a bug where any Plugin would not be able to override any compile-time files.

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• Bug fix (non-breaking change which fixes an issue)

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[greptile-apps]

Greptile Summary

This PR fixes a bug where plugins could not override compile-time files — previously the plugin file was silently ignored if the path already existed in output_mapping. Both the compile-results loop and the plugin static-assets loop now use last-wins semantics, with updated warning messages.

• Plugin override fix: Removes the else guard in the plugin static assets loop so that output_mapping[path] is always written, enabling plugins to intentionally replace generated files (with a warning logged).
• compile_results behavior change: The same structural change is applied to the compile_results loop, shifting from first-wins to last-wins for duplicate output paths — this is not described in the PR but appears intentional for consistency.

Confidence Score: 4/5

Safe to merge; the plugin override fix is correct and the diff is minimal.

The plugin static-assets fix is straightforward and correct. The only concern is that the compile_results loop also quietly switches from first-wins to last-wins, which is a real behavior change not mentioned in the PR description. In practice duplicate compile_results paths would indicate a compilation bug, so the impact is low — but it's worth a confirmation from the author before merging.

reflex/compiler/compiler.py — specifically the compile_results duplicate-path handling around line 1247.

Important Files Changed

Filename	Overview
reflex/compiler/compiler.py	Two related changes in compile_app: compile_results now uses last-wins semantics (was first-wins), and plugin static assets can now overwrite existing paths instead of being silently ignored. Both warning messages updated accordingly.

_{Reviews (1): Last reviewed commit: "Merge branch 'reflex-dev:main' into main" | Re-trigger Greptile}

[codspeed-hq]

Merging this PR will not alter performance

✅ 24 untouched benchmarks
⏩ 2 skipped benchmarks¹

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_{Comparing riebecj:plugins-fix (fb93cea) with main (61d8fad)}

Footnotes

1. 2 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩