huskies: merge 1210 story Gateway-side "digging in" notification for long tool-only turns

server/src/chat/transport/matrix/bot/context.rs

@@ -130,6 +130,10 @@ pub struct BotContext {
     /// Minimum seconds between repeated `compact` suggestions for the same
     /// room. From `bot.toml`'s `compact_suggest_cooldown_secs`.
     pub compact_suggest_cooldown_secs: i64,
+    /// Seconds a turn may spend on tool calls before emitting any
+    /// user-facing text before the bot posts a "digging in" notice. From
+    /// `bot.toml`'s `digging_in_threshold_secs`.
+    pub digging_in_threshold_secs: u64,
 }
 
 impl BotContext {
@@ -356,6 +360,7 @@ mod tests {
             compact_seed_max_bytes: 8_000,
             cache_read_suggest_threshold: 50_000,
             compact_suggest_cooldown_secs: 3_600,
+            digging_in_threshold_secs: 15,
         }
     }