Move tools/eslint-rules to packages/twenty-eslint-rules (#17203)

## Summary

Moves the custom ESLint rules from `tools/eslint-rules` to
`packages/twenty-eslint-rules` for better organization within the
monorepo packages structure.

## Changes

- Move `eslint-rules` from `tools/` to `packages/twenty-eslint-rules`
- Use `loadWorkspaceRules` from `@nx/eslint-plugin` to load custom rules
- Update all ESLint configs to use the `twenty/` rule prefix instead of
`@nx/workspace-`
- Update `project.json`, `jest.config.mjs` with new paths
- Update `package.json` workspaces and `nx.json` cache inputs
- Update Dockerfile reference

## Technical Details

The custom ESLint rules are now loaded using Nx's `loadWorkspaceRules`
utility which:
- Handles TypeScript transpilation automatically
- Allows loading workspace rules from any directory
- Provides a cleaner approach than the previous `@nx/workspace-`
convention

## Testing

- Verified all 17 custom ESLint rules load correctly from the new
location
- Verified linting works on dependent packages (twenty-front,
twenty-server, etc.)

packages/twenty-front/src/modules/workflow/components/__stories__/WorkflowStepExecutionResult.stories.tsx

@@ -1,7 +1,6 @@
 import { type Meta, type StoryObj } from '@storybook/react-vite';
 import { ComponentDecorator } from 'twenty-ui/testing';
 
-import { I18nFrontDecorator } from '~/testing/decorators/I18nFrontDecorator';
 import { SnackBarDecorator } from '~/testing/decorators/SnackBarDecorator';
 
 import { WorkflowStepExecutionResult } from '@/workflow/components/WorkflowStepExecutionResult';
@@ -9,7 +8,7 @@ import { WorkflowStepExecutionResult } from '@/workflow/components/WorkflowStepE
 const meta: Meta<typeof WorkflowStepExecutionResult> = {
   title: 'Modules/Workflow/Components/StepExecutionResult',
   component: WorkflowStepExecutionResult,
-  decorators: [ComponentDecorator, SnackBarDecorator, I18nFrontDecorator],
+  decorators: [ComponentDecorator, SnackBarDecorator],
   args: {
     result: JSON.stringify(
       { message: 'Hello World', status: 'success' },