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/store/ticket_iface.go

@@ -3,7 +3,6 @@ package store
 import "context"
 
 // TicketStore manages short-lived, single-use WebSocket auth tickets.
-// v0.32.0: replaces in-memory sync.Map for cross-pod ticket validation.
 type TicketStore interface {
 	// Issue creates a single-use ticket for the given user.
 	// Returns the opaque ticket ID (128-bit hex).