fix: remove context reaper to prevent background tabs from going stale (#4)

via.go

@@ -58,7 +58,6 @@ type V struct {
 	datastarPath         string
 	datastarContent      []byte
 	datastarOnce         sync.Once
-	reaperStop           chan struct{}
 	middleware           []Middleware
 	layout               func(func() h.H) h.H
 }
@@ -139,12 +138,6 @@ func (v *V) Config(cfg Options) {
 		v.defaultNATS = nil
 		v.pubsub = cfg.PubSub
 	}
-	if cfg.ContextSuspendAfter != 0 {
-		v.cfg.ContextSuspendAfter = cfg.ContextSuspendAfter
-	}
-	if cfg.ContextTTL != 0 {
-		v.cfg.ContextTTL = cfg.ContextTTL
-	}
 	if cfg.Streams != nil {
 		v.cfg.Streams = cfg.Streams
 	}
@@ -292,75 +285,6 @@ func (v *V) getCtx(id string) (*Context, error) {
 	return nil, fmt.Errorf("ctx '%s' not found", id)
 }
 
-func (v *V) startReaper() {
-	ttl := v.cfg.ContextTTL
-	if ttl < 0 {
-		return
-	}
-	if ttl == 0 {
-		ttl = time.Hour
-	}
-	suspendAfter := v.cfg.ContextSuspendAfter
-	if suspendAfter == 0 {
-		suspendAfter = 15 * time.Minute
-	}
-	if suspendAfter > ttl {
-		suspendAfter = ttl
-	}
-	interval := suspendAfter / 3
-	if interval < 5*time.Second {
-		interval = 5 * time.Second
-	}
-	v.reaperStop = make(chan struct{})
-	go func() {
-		ticker := time.NewTicker(interval)
-		defer ticker.Stop()
-		for {
-			select {
-			case <-v.reaperStop:
-				return
-			case <-ticker.C:
-				v.reapOrphanedContexts(suspendAfter, ttl)
-			}
-		}
-	}()
-}
-
-func (v *V) reapOrphanedContexts(suspendAfter, ttl time.Duration) {
-	now := time.Now()
-	v.contextRegistryMutex.RLock()
-	var toSuspend, toReap []*Context
-	for _, c := range v.contextRegistry {
-		if c.sseConnected.Load() {
-			continue
-		}
-		// Use the most recent liveness signal
-		lastAlive := c.createdAt
-		if dc := c.sseDisconnectedAt.Load(); dc != nil && dc.After(lastAlive) {
-			lastAlive = *dc
-		}
-		if seen := c.lastSeenAt.Load(); seen != nil && seen.After(lastAlive) {
-			lastAlive = *seen
-		}
-		silentFor := now.Sub(lastAlive)
-		if silentFor > ttl {
-			toReap = append(toReap, c)
-		} else if silentFor > suspendAfter && !c.suspended.Load() {
-			toSuspend = append(toSuspend, c)
-		}
-	}
-	v.contextRegistryMutex.RUnlock()
-
-	for _, c := range toSuspend {
-		v.logInfo(c, "suspending context (no SSE connection after %s)", suspendAfter)
-		c.suspend()
-	}
-	for _, c := range toReap {
-		v.logInfo(c, "reaping orphaned context (no SSE connection after %s)", ttl)
-		v.cleanupCtx(c)
-	}
-}
-
 // Start starts the Via HTTP server and blocks until a SIGINT or SIGTERM
 // signal is received, then performs a graceful shutdown.
 func (v *V) Start() {
@@ -389,8 +313,6 @@ func (v *V) Start() {
 		Handler: handler,
 	}
 
-	v.startReaper()
-
 	errCh := make(chan error, 1)
 	go func() {
 		errCh <- v.server.ListenAndServe()
@@ -417,9 +339,6 @@ func (v *V) Start() {
 // Shutdown gracefully shuts down the server and all contexts.
 // Safe for programmatic or test use.
 func (v *V) Shutdown() {
-	if v.reaperStop != nil {
-		close(v.reaperStop)
-	}
 	v.logInfo(nil, "draining all contexts")
 	v.drainAllContexts()
 
@@ -667,8 +586,6 @@ func New() *V {
 			return
 		}
 		c.reqCtx = r.Context()
-		now := time.Now()
-		c.lastSeenAt.Store(&now)
 
 		sse := datastar.NewSSE(w, r, datastar.WithCompression(datastar.WithBrotli(datastar.WithBrotliLevel(5))))
 
@@ -690,16 +607,6 @@ func New() *V {
 		c.sseDisconnectedAt.Store(nil)
 		v.logDebug(c, "SSE connection established")
 
-		if c.suspended.Load() {
-			c.navMu.Lock()
-			c.suspended.Store(false)
-			if initFn := v.pageRegistry[c.route]; initFn != nil {
-				v.logInfo(c, "resuming suspended context")
-				initFn(c)
-			}
-			c.navMu.Unlock()
-		}
-
 		go c.Sync()
 
 		keepalive := time.NewTicker(30 * time.Second)