Refactor handle_receive_pack to use unified process_newly_available_git_data

Replace ~100 lines of duplicated post-push processing in handle_receive_pack
with a single call to the unified process_newly_available_git_data function.

The unified function handles all post-git-data-available processing:
- Discovering satisfiable events from purgatory (state and PR events)
- Syncing OIDs to authorized owner repos
- Aligning refs (+ setting HEAD) in all owner repos
- Saving events to database
- Notifying WebSocket subscribers
- Removing from purgatory

This ensures consistent behavior regardless of how git data arrives
(git push vs purgatory sync fetching from remote servers).

Also mark test-only internal methods with #[cfg(test)] to silence
dead code warnings.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/purgatory/sync/throttle.rs b/src/purgatory/sync/throttle.rs
index a310a91..05b0878 100644
--- a/src/purgatory/sync/throttle.rs
+++ b/src/purgatory/sync/throttle.rs
@@ -343,6 +343,7 @@ impl ThrottleManager {
     ///
     /// Decrements in-flight count and cleans up old timestamps.
     /// Does not trigger processing of queued identifiers.
+    #[cfg(test)]
     fn complete_request_internal(&self, domain: &str) {
         if let Some(entry) = self.throttles.get(domain) {
             let mut throttle = entry.lock().unwrap();
@@ -377,6 +378,7 @@ impl ThrottleManager {
     ///
     /// If the identifier is already queued for this domain, merges the tried_urls sets.
     /// Does not trigger processing.
+    #[cfg(test)]
     fn enqueue_identifier_internal(
         &self,
         domain: &str,