fix: make ruff format work outside of pre-commit

[benedikt-bartscher]

No description provided.

[greptile-apps]

Greptile Summary

This PR moves the --preview flag out of the ruff format pre-commit hook command and into the [tool.ruff] configuration block of docs/app/pyproject.toml, making preview mode active whenever ruff format is invoked—whether inside or outside of pre-commit. The root pyproject.toml already contained preview = true, so this change brings docs/app/pyproject.toml into parity and the hook itself into alignment with both configs.

Confidence Score: 5/5

Safe to merge — clean two-line config-only fix with no logic changes.

Both changed files are configuration-only. The root pyproject.toml already had preview = true, so docs/app/pyproject.toml is simply brought into parity. Removing the CLI flag from the hook is the correct way to ensure consistent behaviour across invocation contexts.

No files require special attention.

Important Files Changed

Filename	Overview
.pre-commit-config.yaml	Removes the --preview CLI flag from the ruff-format hook entry; preview mode is now sourced from pyproject.toml config instead.
docs/app/pyproject.toml	Adds preview = true to [tool.ruff], matching the root pyproject.toml so ruff format respects preview mode in all invocation contexts.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    A[ruff format invoked] --> B{How invoked?}
    B -->|pre-commit| C["pre-commit hook\n(entry: ruff format)"]
    B -->|standalone CLI| D["ruff format ."]
    C --> E[ruff searches for config]
    D --> E
    E --> F["pyproject.toml\n[tool.ruff]\npreview = true"]
    F --> G[ruff format runs with preview mode]

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_{Reviews (1): Last reviewed commit: "fix: make `ruff format` work outside of ..." | Re-trigger Greptile}

[codspeed-hq]

Merging this PR will not alter performance

✅ 9 untouched benchmarks

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_{Comparing benedikt-bartscher:configure-ruff-via-pyproject (84ca0fb) with main (1a64caa)}