Add "Ready on Halftime" option support + Add team sides data mapping

[AHDR3]

🧩 Add "Ready on Halftime" option support + Add team sides data mapping

This PR implements the frontend-side changes required to support new match control logic from eBot-CSGO, and changes schema mapping for round summaries.

---

✅ Features

• Add "Ready on Halftime" option (UI support)
  Integrates the new match option allowing admins to change halftime ready behave.

---

🛠 Fixes

• Update Doctrine schema: side_a and side_b in roundsummary
  Adds the schema fields that allow accurate team side swaps on backups.

---

🧠 Notes

This improves admin control over match flow, ensures correct round side display, and adds a highly requested halftime feature.