move daemon, IRC, and remaining state to ~/.consciousness/

- Daemon socket/pid/log: ~/.consciousness/daemon.{sock,pid}, logs/daemon.log
- Daemon config: ~/.consciousness/daemon.toml
- Daemon state: ~/.consciousness/daemon-state.json
- IRC logs: ~/.consciousness/irc/logs/
- No more .claude/ references except Claude Code integration points
  (projects, settings, hooks, telegram, CLAUDE.md)

src/bin/poc-hook.rs

@@ -17,7 +17,7 @@ use std::time::{SystemTime, UNIX_EPOCH};
 
 const CONTEXT_THRESHOLD: u64 = 900_000;
 const RATE_LIMIT_SECS: u64 = 60;
-const SOCK_PATH: &str = ".claude/hooks/idle-timer.sock";
+const SOCK_PATH: &str = ".consciousness/daemon.sock";
 /// How many bytes of new transcript before triggering an observation run.
 /// Override with POC_OBSERVATION_THRESHOLD env var.
 /// Default: 20KB ≈ 5K tokens. The observation agent's chunk_size (in .agent