Add archive relay query augmentation and access-based GC (v0.45.0)

- Add async archive relay querying (local results immediate, archives in background)
- Add query caching with filter normalization to avoid repeated requests
- Add session-deduplicated access tracking for events
- Add continuous garbage collection based on access patterns
- Auto-detect storage limit (80% of filesystem) when ORLY_MAX_STORAGE_BYTES=0
- Support NIP-50 search queries to archive relays

New environment variables:
- ORLY_ARCHIVE_ENABLED: Enable archive relay query augmentation
- ORLY_ARCHIVE_RELAYS: Comma-separated archive relay URLs
- ORLY_ARCHIVE_TIMEOUT_SEC: Archive query timeout
- ORLY_ARCHIVE_CACHE_TTL_HRS: Query deduplication window
- ORLY_GC_ENABLED: Enable access-based garbage collection
- ORLY_MAX_STORAGE_BYTES: Max storage (0=auto 80%)
- ORLY_GC_INTERVAL_SEC: GC check interval
- ORLY_GC_BATCH_SIZE: Events per GC cycle

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

app/server.go

@@ -38,8 +38,10 @@ import (
 	"next.orly.dev/pkg/cashu/verifier"
 	"next.orly.dev/pkg/ratelimit"
 	"next.orly.dev/pkg/spider"
+	"next.orly.dev/pkg/storage"
 	dsync "next.orly.dev/pkg/sync"
 	"next.orly.dev/pkg/wireguard"
+	"next.orly.dev/pkg/archive"
 )
 
 type Server struct {
@@ -91,6 +93,11 @@ type Server struct {
 	// Cashu access token system (NIP-XX)
 	CashuIssuer   *issuer.Issuer
 	CashuVerifier *verifier.Verifier
+
+	// Archive relay and storage management
+	archiveManager   *archive.Manager
+	accessTracker    *storage.AccessTracker
+	garbageCollector *storage.GarbageCollector
 }
 
 // isIPBlacklisted checks if an IP address is blacklisted using the managed ACL system