refactor(web_ui): Bus::effective_context_window, sigint_claude + per-connection hello, relocate fetch_reminder_stats, drop redundant guard

hive-ag3nt/src/web_ui/state.rs

@@ -36,10 +36,7 @@ pub(super) async fn api_state(State(state): State<AppState>) -> axum::Json<State
     let inbox = recent_inbox(&state.socket).await;
     let (turn_state, turn_state_since) = state.bus.state_snapshot();
     let model = state.bus.model();
-    let context_window_tokens = state
-        .bus
-        .api_context_window()
-        .unwrap_or_else(|| crate::events::context_window_tokens(&model));
+    let context_window_tokens = state.bus.effective_context_window(&model);
     let ctx_usage = state.bus.last_ctx_usage();
     let cost_usage = state.bus.last_cost_usage();
     let effort = state.bus.effort();
@@ -87,10 +84,7 @@ pub(super) async fn api_dashboard_state(
     let (status_text, status_set_at) = read_own_status();
     let rate_limited = state.bus.is_rate_limited();
     let model = state.bus.model();
-    let context_window_tokens = state
-        .bus
-        .api_context_window()
-        .unwrap_or_else(|| crate::events::context_window_tokens(&model));
+    let context_window_tokens = state.bus.effective_context_window(&model);
     // Full context-window size = input + cache-read + cache-creation. Using
     // raw `input_tokens` here reported only the *uncached* sliver, which is
     // ~0 once prompt caching kicks in — so every card showed `ctx·0k`. Match
@@ -378,38 +372,16 @@ async fn recent_inbox(socket: &std::path::Path) -> Vec<hive_sh4re::InboxRow> {
     }
 }
 
-/// Fetch reminder activity stats from the broker via the per-agent /
-/// manager socket. Returns None on any transport / decode failure — the
-/// stats are decorative, not authoritative.
-pub(super) async fn fetch_reminder_stats(
-    socket: &std::path::Path,
-    window_secs: u64,
-) -> Option<hive_sh4re::ReminderStats> {
-    match super::broker_request(
-        socket,
-        &hive_sh4re::Request::ReminderRollup {
-            since_secs: window_secs,
-            agent: None,
-        },
-    )
-    .await
-    {
-        Ok(hive_sh4re::Response::ReminderRollup(stats)) => Some(stats),
-        _ => None,
-    }
-}
-
 /// Read `HIVE_AVAILABLE_MODELS` (comma-separated short names injected by
 /// `services.hyperhive.availableModels`) and return the parsed list.
 /// Falls back to `["haiku", "sonnet", "opus"]` when the env var is absent
 /// or resolves to an empty list after trimming.
 fn available_models() -> Vec<String> {
     const DEFAULT: &[&str] = &["haiku", "sonnet", "opus"];
-    let raw = match std::env::var("HIVE_AVAILABLE_MODELS") {
-        Ok(v) if !v.trim().is_empty() => v,
-        _ => return DEFAULT.iter().map(ToString::to_string).collect(),
-    };
-    let models: Vec<String> = raw
+    // Absent / empty / all-whitespace env all funnel to the single
+    // emptiness check below — no separate up-front guard needed.
+    let models: Vec<String> = std::env::var("HIVE_AVAILABLE_MODELS")
+        .unwrap_or_default()
         .split(',')
         .map(|s| s.trim().to_string())
         .filter(|s| !s.is_empty())