chore: strip pre-fork version comments across 72 files

Removes standalone "// v0.X.X:" comment lines and inline trailing
version annotations. Keeps version references in config field docs
and compatibility notes where they describe requirements.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

server/events/ws.go

@@ -174,7 +174,6 @@ func (h *Hub) IsConnected(userID string) bool {
 }
 
 // PublishToUser sends an event to a specific user via the bus.
-// v0.32.0: Cross-pod safe — the bus broadcast hook fans out via pg_notify.
 // All replicas receive the event; only the one with the user's connection delivers it.
 func (h *Hub) PublishToUser(userID string, event Event) {
 	event.TargetUserID = userID
@@ -238,13 +237,11 @@ func (c *Conn) subscribeToBus() {
 			return
 		}
 
-		// v0.32.0: Targeted delivery — only deliver to the intended user.
 		// Targeted events skip room filtering (user-scoped, not room-scoped).
 		if e.TargetUserID != "" && e.TargetUserID != c.userID {
 			return
 		}
 
-		// v0.32.0: tool.result travels cross-pod for WaitFor (DirBoth) but
 		// must not be forwarded to WebSocket clients — they sent it.
 		if strings.HasPrefix(e.Label, "tool.result.") {
 			return
@@ -316,7 +313,6 @@ func (c *Conn) readPump() {
 			continue
 		}
 
-		// v0.5.0: Room management — intercept before bus publish (like ping)
 		if event.Label == "room.subscribe" {
 			var req struct {
 				Room string `json:"room"`