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/Cargo.toml

@@ -0,0 +1,30 @@
+[package]
+name = "poc-daemon"
+version.workspace = true
+edition.workspace = true
+
+[dependencies]
+capnp = "0.20"
+capnp-rpc = "0.20"
+clap = { version = "4", features = ["derive"] }
+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"] }
+serde = { version = "1", features = ["derive"] }
+serde_json = "1"
+chrono = "0.4"
+
+[build-dependencies]
+capnpc = "0.20"
+
+[[bin]]
+name = "poc-daemon"
+path = "src/main.rs"