Pausa: 11 crates del fractal Ente #0 con cerebro completo

PID 1 boot + bus interno autenticado + cerebro KCL/Rust:
- 6 lib crates de infra (card, bus, cas, kernel, soma, wasm, snapshot)
- ente-brain: motor de reglas O(1), observer Shannon, cristalización,
  audit hash-chain, persistencia rules.k, Prometheus /metrics
- KCL schemas card.k + rule.k como gramática autoritativa
- compat-logind D-Bus, ente-echo demo provider, ente-zero PID 1
- 22 tests OK, ~3.8k LOC Rust + ~300 LOC KCL

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

crates/ente-bus/Cargo.toml

@@ -0,0 +1,22 @@
+[package]
+name = "ente-bus"
+version = "0.0.1"
+edition.workspace = true
+license.workspace = true
+publish.workspace = true
+
+[dependencies]
+ente-card = { path = "../ente-card" }
+serde = { workspace = true }
+postcard = { workspace = true }
+ulid = { workspace = true }
+tokio = { workspace = true }
+anyhow = { workspace = true }
+tracing = { workspace = true }
+
+[dev-dependencies]
+ente-echo = { path = "../ente-echo" }
+
+[[example]]
+name = "busctl"
+path = "examples/busctl.rs"