Use hashset to dedupe plugin names from Lang

[yuandrew]

What was changed

Use HashSet instead of Vec for plugins

Why?

To better enforce deduping duplicate plugin names. Note, due to Version being a part of the struct, this doesn't fully dedupe plugins with the same names (when they have different versions), but it still helps.

Checklist

1. Closes

2. How was this tested:

3. Any docs updates needed?

---

Note

Replace plugin list with a HashSet across worker config/bridge and sort by name when emitting heartbeats; update tests accordingly.

• Core config:
  • Change WorkerConfig.plugins from Vec<PluginInfo> to HashSet<PluginInfo> in crates/common/src/worker.rs.
• C-bridge:
  • Convert plugins input to HashSet<_> and build HashSet<PluginInfo> in crates/sdk-core-c-bridge/src/worker.rs.
• Heartbeat emission:
  • Collect plugins from set and sort by name before sending in WorkerHeartbeat in crates/sdk-core/src/worker/mod.rs.
• Tests:
  • Update worker_heartbeat_tests.rs to pass plugins as HashSet<PluginInfo>.

^{Written by Cursor Bugbot for commit 481543d. This will update automatically on new commits. Configure here.}