Add telemetry events for loading extensions (#9793)

* Store extensions versions' wasm API version in the database
* Share a common struct for extension API responses between collab and
client
* Add wasm API version and schema version to extension API responses

Release Notes:

- N/A

Co-authored-by: Marshall <marshall@zed.dev>

crates/telemetry_events/src/telemetry_events.rs

@@ -1,6 +1,5 @@
-use std::fmt::Display;
-
 use serde::{Deserialize, Serialize};
+use std::{fmt::Display, sync::Arc};
 use util::SemanticVersion;
 
 #[derive(Serialize, Deserialize, Debug)]
@@ -61,6 +60,7 @@ pub enum Event {
     Memory(MemoryEvent),
     App(AppEvent),
     Setting(SettingEvent),
+    Extension(ExtensionEvent),
     Edit(EditEvent),
     Action(ActionEvent),
 }
@@ -125,6 +125,12 @@ pub struct SettingEvent {
     pub value: String,
 }
 
+#[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
+pub struct ExtensionEvent {
+    pub extension_id: Arc<str>,
+    pub version: Arc<str>,
+}
+
 #[derive(Clone, Debug, PartialEq, Serialize, Deserialize)]
 pub struct AppEvent {
     pub operation: String,