Introduce staff-only inline completion provider (#21739)

Release Notes:

- N/A

---------

Co-authored-by: Thorsten Ball <mrnugget@gmail.com>
Co-authored-by: Bennet <bennet@zed.dev>
Co-authored-by: Thorsten <thorsten@zed.dev>

crates/collab/src/api/events.rs

@@ -483,7 +483,7 @@ pub async fn post_events(
                         checksum_matched,
                     ))
             }
-            Event::Cpu(_) | Event::Memory(_) => continue,
+            Event::Cpu(_) | Event::Memory(_) | Event::InlineCompletionRating(_) => continue,
             Event::App(event) => to_upload.app_events.push(AppEventRow::from_event(
                 event.clone(),
                 wrapper,
@@ -1406,6 +1406,10 @@ fn for_snowflake(
                 ),
                 serde_json::to_value(e).unwrap(),
             ),
+            Event::InlineCompletionRating(e) => (
+                "Inline Completion Feedback".to_string(),
+                serde_json::to_value(e).unwrap(),
+            ),
             Event::Call(e) => {
                 let event_type = match e.operation.trim() {
                     "unshare project" => "Project Unshared".to_string(),