chore(front): remove vite-plugin-checker background TS/ESLint checks

[charlesBochet]

Summary

Removes vite-plugin-checker and all references to VITE_DISABLE_TYPESCRIPT_CHECKER / VITE_DISABLE_ESLINT_CHECKER.

These background checks are no longer needed because our dev experience now relies on independent linters and type-checkers:

• npx nx lint:diff-with-main twenty-front for ESLint
• npx nx typecheck twenty-front for TypeScript

Running these as separate processes (rather than inside Vite) is faster, gives cleaner output, and avoids the significant memory overhead that vite-plugin-checker introduces during vite dev and vite build. The old env vars to disable them are removed from vite.config.ts, package.json scripts, nx.json, .env.example, and all translated docs.

[cubic-dev-ai]

No issues found across 18 files

[greptile-apps]

Greptile Summary

This PR removes vite-plugin-checker and all related configuration (VITE_DISABLE_TYPESCRIPT_CHECKER, VITE_DISABLE_ESLINT_CHECKER) from twenty-front, replacing in-Vite background checks with dedicated nx lint:diff-with-main and nx typecheck commands run as separate processes. All 14 translated troubleshooting docs are updated accordingly.

Key changes:

• vite.config.ts: Removes the checker import and plugin call, the VITE_DISABLE_TYPESCRIPT_CHECKER env var handling, and the isBuildCommand/tsConfigPath logic that selected tsconfig.build.json vs tsconfig.json — no longer needed since type checking is done externally. The eslint-disable is now correctly scoped inline to the single console.log statement instead of file-level.
• package.json & nx.json: Build scripts and storybook configuration cleaned up by removing the now-obsolete VITE_DISABLE_TYPESCRIPT_CHECKER=true env var injections.
• Docs (EN + 13 translations): The OOM memory troubleshooting section removes the checker disable workaround as a first step; the remaining guidance ("Run only needed services") flows correctly.
• Note: packages/twenty-ui retains its own vite-plugin-checker usage, and the related troubleshooting reference in the docs is correctly left in place.

This is a clean removal with no runtime impact on the application—all type checking and linting is preserved via independent nx tasks.

Confidence Score: 5/5

• This PR is safe to merge—it is a clean removal of an optional dev-tooling plugin with no runtime impact.
• All changes are purely in build tooling and documentation. The runtime application is unaffected. TypeScript and ESLint checking is preserved via independent nx tasks. No remaining references to the removed env vars exist in the codebase, and twenty-ui's use of vite-plugin-checker is correctly left untouched.
• No files require special attention.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    subgraph Before["Before this PR"]
        B_Dev["vite dev / vite build"]
        B_Checker["vite-plugin-checker<br/>(TS + ESLint in-process)"]
        B_Env["VITE_DISABLE_TYPESCRIPT_CHECKER=true<br/>(escape hatch)"]
        B_Dev --> B_Checker
        B_Env -. disables .-> B_Checker
    end

    subgraph After["After this PR"]
        A_Dev["vite dev / vite build<br/>(no checker plugin)"]
        A_TS["npx nx typecheck twenty-front<br/>(separate process)"]
        A_Lint["npx nx lint:diff-with-main twenty-front<br/>(separate process)"]
        A_Dev
        A_TS
        A_Lint
    end

    Before -->|"PR removes checker,<br/>env var, escape hatch"| After

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_{Last reviewed commit: 3d8697c}

[Copilot]

Pull request overview

Removes vite-plugin-checker and the associated Vite env-var toggles, shifting type-checking and linting to separate Nx tasks to improve dev/build performance and reduce memory overhead.

Changes:

• Removed vite-plugin-checker usage from packages/twenty-front/vite.config.ts and dropped VITE_DISABLE_TYPESCRIPT_CHECKER support.
• Cleaned up related build/storybook commands and removed vite-plugin-checker from devDependencies.
• Removed now-obsolete troubleshooting guidance across the main docs and translations.

Reviewed changes

Copilot reviewed 18 out of 18 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
packages/twenty-front/vite.config.ts	Removes checker plugin wiring and related env-var logic.
packages/twenty-front/package.json	Updates build scripts and drops vite-plugin-checker dependency.
packages/twenty-front/.env.example	Removes the deprecated env-var example.
packages/twenty-docs/developers/self-host/capabilities/troubleshooting.mdx	Removes outdated advice for disabling Vite background checks.
packages/twenty-docs/l/ar/developers/self-host/capabilities/troubleshooting.mdx	Same troubleshooting cleanup (AR).
packages/twenty-docs/l/cs/developers/self-host/capabilities/troubleshooting.mdx	Same troubleshooting cleanup (CS).
packages/twenty-docs/l/de/developers/self-host/capabilities/troubleshooting.mdx	Same troubleshooting cleanup (DE).
packages/twenty-docs/l/es/developers/self-host/capabilities/troubleshooting.mdx	Same troubleshooting cleanup (ES).
packages/twenty-docs/l/fr/developers/self-host/capabilities/troubleshooting.mdx	Same troubleshooting cleanup (FR).
packages/twenty-docs/l/it/developers/self-host/capabilities/troubleshooting.mdx	Same troubleshooting cleanup (IT).
packages/twenty-docs/l/ja/developers/self-host/capabilities/troubleshooting.mdx	Same troubleshooting cleanup (JA).
packages/twenty-docs/l/ko/developers/self-host/capabilities/troubleshooting.mdx	Same troubleshooting cleanup (KO).
packages/twenty-docs/l/pt/developers/self-host/capabilities/troubleshooting.mdx	Same troubleshooting cleanup (PT).
packages/twenty-docs/l/ro/developers/self-host/capabilities/troubleshooting.mdx	Same troubleshooting cleanup (RO).
packages/twenty-docs/l/ru/developers/self-host/capabilities/troubleshooting.mdx	Same troubleshooting cleanup (RU).
packages/twenty-docs/l/tr/developers/self-host/capabilities/troubleshooting.mdx	Same troubleshooting cleanup (TR).
packages/twenty-docs/l/zh/developers/self-host/capabilities/troubleshooting.mdx	Same troubleshooting cleanup (ZH).
nx.json	Removes deprecated env-var from storybook build command.

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[Copilot]

This Italian localized troubleshooting page still contains English sentences/headers (e.g., “Run only the services you need” / “If it does not work”). Since this section is user-facing documentation, it should be fully translated to Italian (or replaced with the localized equivalent) for consistency with the rest of the file.