rename: poc-agent → agent, poc-daemon → thalamus

The thalamus: sensory relay, always-on routing. Perfect name for the
daemon that bridges IRC, Telegram, and the agent.

Co-Authored-By: Proof of Concept <poc@bcachefs.org>

thalamus/src/context.rs

@@ -0,0 +1,19 @@
+// Context gathering for idle prompts.
+//
+// Notifications are handled by the notify module and passed
+// in separately by the caller. Git context and IRC digest
+// are now available through where-am-i.md and the memory graph.
+
+/// Build context string for a prompt.
+/// notification_text is passed in from the notify module.
+pub fn build(_include_irc: bool, notification_text: &str) -> String {
+    // Keep nudges short — Claude checks notifications via
+    // `poc-daemon status` on its own. Just mention the count.
+    let count = notification_text.matches("[irc.").count()
+        + notification_text.matches("[telegram.").count();
+    if count > 0 {
+        format!("{count} pending notifications")
+    } else {
+        String::new()
+    }
+}