feat: suppress alerts for unwatched hosts

Hosts with watch: false in config no longer appear in the Alerts page
or nav bar alert counts. Events still appear in the Log of Events.
Hosts without a config entry default to watch: false.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

hbd/server/hbdclass.py

@@ -286,7 +286,7 @@ class Host:
             Host.hosts[name] = self
         self.num = num
         self.dyn = False
-        self.watched = True
+        self.watched = False
         self.upcount = 0
         self.interval = 0
         self.doesack = -1

hbd/server/http.py

@@ -325,6 +325,8 @@ async def start(
         from .threshold import AlertLevel
         critical = warning = ok = 0
         for host in hbdclass.Host.hosts.values():
+            if not host.watched:
+                continue
             if not _can_operate_host(user, host):
                 continue
             levels = {s.level for s in host.alert_states.values()}
@@ -595,6 +597,8 @@ async def start(
         all_alerts = []
 
         for hostname, host in hbdclass.Host.hosts.items():
+            if not host.watched:
+                continue
             if not _can_view_host(user, host):
                 continue
             if threshold_checker:

hbd/server/udp.py

@@ -333,6 +333,8 @@ def handle_datagram(msg: dict, addr, transport, ctx: dict):
         # Use new config function to check dyndns
         dyndnshosts = config_mod.get_dyndnshosts(cfg)
         host.dyn = uname in dyndnshosts
+        watchhosts = config_mod.get_watchhosts(cfg)
+        host.watched = uname in watchhosts
         # Apply user-access settings from config
         access = config_mod.get_host_access(cfg, uname)
         host.apply_access(access["owner"], access["managers"], access["monitors"])