# Game Configuration Panel

## Summary

Add a configuration panel above the "Commencer une partie" button on the homepage, allowing players to customize game generation parameters before starting.

## Parameters

### Films vus (toggle on/off)

- **Visible only** for authenticated users
- Default: off
- When enabled: all actors in the grid (main actor + hint actors) must appear in at least one film marked as watched by the user
- When disabled: no filtering, any actor can appear

### Paramètres des indices (checkboxes)

Three checkboxes controlling which hint types can appear in the grid:

- **Film** (default: checked) — hint shows a film the actor appeared in
- **Rôle** (default: checked) — hint shows a character name the actor played
- **Récompense** (default: checked) — hint shows an award the actor received

**Constraint:** at least one must remain checked. The UI prevents unchecking the last one.

### Récompenses (multi-select checkboxes)

- **Visible only** when "Récompense" is checked
- Lists all `AwardType` entities that have 5+ distinct actors in the database
- A "Toutes les récompenses" option at the top that toggles all
- Default: all checked (= "Toutes" checked)
- Unchecking an individual item unchecks "Toutes"; rechecking all rechecks "Toutes"
- Selected AwardType IDs are sent as `award_types[]` in the form POST

## UI Layout

```
┌─────────────────────────────────┐
│  Films vus         [ toggle ]   │  ← auth users only
├─────────────────────────────────┤
│  Paramètres des indices         │
│                                 │
│  ☑ Film   ☑ Rôle   ☑ Récompense│
│                                 │
│  Récompenses :                  │  ← visible if Récompense checked
│  ┌───────────────────────┐      │
│  │ ☑ Toutes les récomp.  │      │
│  │ ☑ Academy Awards      │      │
│  │ ☑ Golden Globes       │      │
│  │ ☑ César               │      │
│  │ ...                   │      │
│  └───────────────────────┘      │
├─────────────────────────────────┤
│    [ Commencer une partie ]     │
│                                 │
│  Connectez-vous pour importer...│
└─────────────────────────────────┘
```

## Form Fields

All parameters are fields within the existing start game `<form>`:

| Field name | Type | Value |
|---|---|---|
| `watched_only` | hidden + checkbox | `"1"` if checked, absent otherwise |
| `hint_film` | checkbox | `"1"` if checked |
| `hint_character` | checkbox | `"1"` if checked |
| `hint_award` | checkbox | `"1"` if checked |
| `award_types[]` | checkbox (multiple) | Array of AwardType IDs |

## Backend Changes

### HomepageController

- Query `AwardTypeRepository::findWithMinActors(5)` to get eligible AwardType list
- Pass to template for rendering the multi-select

### GameController (POST /game/start)

- Extract config parameters from the Request
- Pass config to `GameGridProvider::generate()`

### GameGridProvider::generate()

Receives a config array/object with:

- `watchedOnly` (bool) — filter actors to those in user's watched films
- `hintTypes` (array) — subset of `['film', 'character', 'award']` based on checked boxes
- `awardTypeIds` (array|null) — list of selected AwardType IDs, null = all

Generation logic changes:

- **Actor selection:** if `watchedOnly` is true, only pick actors with a MovieRole in a film watched by the authenticated user
- **Hint selection:** only use hint types present in `hintTypes`
- **Award hints:** only pick awards whose AwardType ID is in `awardTypeIds`
- **Retry mechanism:** if generation fails (cannot find a valid hint for every row), retry up to 5 times. After 5 failures, redirect to homepage with a flash error message explaining the grid could not be generated with the chosen parameters.

### AwardTypeRepository

New method: `findWithMinActors(int $minActors): array` — returns AwardType entities having at least `$minActors` distinct actors.

## Frontend Changes

### Stimulus controller: `game-config`

Registered on the config panel container. Handles:

1. **Award section visibility:** show/hide the AwardType checkbox list when "Récompense" is toggled
2. **Minimum one hint type:** prevent unchecking the last remaining hint checkbox
3. **"Toutes les récompenses" toggle:** check/uncheck all AwardType checkboxes; sync state when individual items change

### CSS (in app.css)

- **Toggle switch:** CSS-only using `appearance: none` on checkbox, `::before` pseudo-element for the sliding circle, `--orange` when active, `--border` when inactive
- **Hint checkboxes:** `accent-color: var(--orange)`
- **AwardType list:** border `var(--border)`, `border-radius: var(--radius-sm)`, `max-height: 150px`, `overflow-y: auto`
- **Section labels:** `color: var(--text-muted)`, `font-size: 13px`, `text-transform: uppercase`
- No new CSS or JS files — everything in existing `app.css` and a new Stimulus controller file