merge poc-daemon and poc-hook into poc-memory repo

Move the notification daemon (IRC, Telegram, idle timer) and the
Claude Code hook binary into this repo as additional [[bin]] targets.
Single `cargo install --path .` now installs everything:

  poc-memory       — memory store CLI
  memory-search    — hook for memory retrieval
  poc-daemon       — notification/idle daemon (was claude-daemon)
  poc-hook         — Claude Code lifecycle hook (was claude-hook)

Renamed from claude-{daemon,hook} to poc-{daemon,hook} since the
infrastructure isn't tied to any specific AI assistant.

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

Cargo.toml

@@ -21,6 +21,20 @@ paste = "1"
 jobkit = { path = "/home/kent/jobkit" }
 log = "0.4"
 
+# poc-daemon deps
+capnp-rpc = "0.20"
+futures = "0.3"
+tokio = { version = "1", features = ["full"] }
+tokio-util = { version = "0.7", features = ["compat"] }
+toml = "0.8"
+tokio-rustls = "0.26"
+rustls = { version = "0.23", default-features = false, features = ["ring", "logging", "std", "tls12"] }
+webpki-roots = "1"
+tracing = "0.1"
+tracing-subscriber = { version = "0.3", features = ["env-filter"] }
+tracing-appender = "0.2"
+reqwest = { version = "0.12", default-features = false, features = ["rustls-tls-webpki-roots", "json"] }
+
 [build-dependencies]
 capnpc = "0.20"
 
@@ -32,5 +46,13 @@ path = "src/main.rs"
 name = "memory-search"
 path = "src/bin/memory-search.rs"
 
+[[bin]]
+name = "poc-daemon"
+path = "src/bin/poc-daemon/main.rs"
+
+[[bin]]
+name = "poc-hook"
+path = "src/bin/poc-hook.rs"
+
 [profile.release]
 opt-level = 2