tests: implement tests regarding time conditions

[quinteselena]

The player loses the match if any of the following happens:

• The timer reaches zero and the player has not connected the three sides of the board.
• The opponent (bot) connects the three sides of the board before the player.

🔺 Win Condition
The player wins the match if:

They connect the three sides of the board before the timer reaches zero AND before the opponent connects their three sides.

Required Features

1. Game End Detection

• Detect when the player or the bot completes a winning connection.
• Detect when the timer reaches zero.
• Trigger the end‑of‑game state accordingly.

2. UI Feedback
   When the match ends, the interface must display:

• A congratulatory message if the player wins.
• An encouraging message if the player loses.

Both outcomes must include two buttons:

• Exit → Navigates to the main page.
• Play Again → Navigates to the Game Preview screen.

3. Data Persistence
   The result of the match (win or loss) must be stored in the database.
   This data will be used to:

• Update the global ranking.
• Display the match in the user's game history.

Acceptance Criteria

• The game ends correctly under all win/loss conditions.
• The correct message is shown depending on the outcome.
• Exit and Play Again buttons work as expected.
• Match results are saved and accessible for ranking and history.
• No match can continue indefinitely.