split into workspace: poc-memory and poc-daemon subcrates

poc-daemon (notification routing, idle timer, IRC, Telegram) was already
fully self-contained with no imports from the poc-memory library. Now it's
a proper separate crate with its own Cargo.toml and capnp schema.

poc-memory retains the store, graph, search, neuro, knowledge, and the
jobkit-based memory maintenance daemon (daemon.rs).

Co-Authored-By: ProofOfConcept <poc@bcachefs.org>

poc-daemon/src/config.rs

@@ -0,0 +1,97 @@
+// Daemon configuration.
+//
+// Lives at ~/.claude/daemon.toml. Loaded on startup, updated at
+// runtime when modules change state (join channel, etc.).
+
+use crate::home;
+use serde::{Deserialize, Serialize};
+use std::fs;
+use std::path::PathBuf;
+
+fn config_path() -> PathBuf {
+    home().join(".claude/daemon.toml")
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize, Default)]
+pub struct Config {
+    #[serde(default)]
+    pub irc: IrcConfig,
+    #[serde(default)]
+    pub telegram: TelegramConfig,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct IrcConfig {
+    pub enabled: bool,
+    pub server: String,
+    pub port: u16,
+    pub tls: bool,
+    pub nick: String,
+    pub user: String,
+    pub realname: String,
+    pub channels: Vec<String>,
+}
+
+impl Default for IrcConfig {
+    fn default() -> Self {
+        Self {
+            enabled: true,
+            server: "irc.libera.chat".into(),
+            port: 6697,
+            tls: true,
+            nick: "ProofOfConcept".into(),
+            user: "poc".into(),
+            realname: "ProofOfConcept".into(),
+            channels: vec!["#bcachefs".into(), "#bcachefs-ai".into()],
+        }
+    }
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct TelegramConfig {
+    pub enabled: bool,
+    pub token: String,
+    pub chat_id: i64,
+}
+
+impl Default for TelegramConfig {
+    fn default() -> Self {
+        // Load token and chat_id from legacy files if they exist
+        let token = std::fs::read_to_string(home().join(".claude/telegram/token"))
+            .map(|s| s.trim().to_string())
+            .unwrap_or_default();
+        let chat_id = std::fs::read_to_string(home().join(".claude/telegram/chat_id"))
+            .ok()
+            .and_then(|s| s.trim().parse().ok())
+            .unwrap_or(0);
+        Self {
+            enabled: !token.is_empty() && chat_id != 0,
+            token,
+            chat_id,
+        }
+    }
+}
+
+impl Config {
+    pub fn load() -> Self {
+        let path = config_path();
+        match fs::read_to_string(&path) {
+            Ok(data) => toml::from_str(&data).unwrap_or_else(|e| {
+                tracing::warn!("bad config {}: {e}, using defaults", path.display());
+                Self::default()
+            }),
+            Err(_) => {
+                let config = Self::default();
+                config.save();
+                config
+            }
+        }
+    }
+
+    pub fn save(&self) {
+        let path = config_path();
+        if let Ok(data) = toml::to_string_pretty(self) {
+            let _ = fs::write(path, data);
+        }
+    }
+}