feat(code): added code/trigger API endpoint

[YuryShkoda]

Issue

#373

Intent

• Add code/trigger API endpoint.

Implementation

• Added the trigger POST route to the code routes at api/src/routes/api/code.ts.
• Added the triggerCode method to the CodeController class at api/src/controllers/code.ts.
• Improved the scheduleSessionDestroy method of the Session class at api/src/controllers/internal/Session.ts.
• Extended Session type at api/src/types/Session.ts.
• Added triggerCodeValidation to api/src/utils/validation.ts.

Checks

• Code is formatted correctly (npm run lint:fix).
• Any new functionality has been unit tested.
• All unit tests are passing (npm test).
• All CI checks are green.
• Reviewer is assigned.

[github-actions]

🎉 This PR is included in version 0.36.0 🎉

The release is available on:

• GitHub release
• v0.36.0

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