Add AEC (Aether Code) - cognitive shell language

- Cognitive primitives: recall, kg_*, dht_*
- Self-awareness: can read and analyze own source code
- Persistent memory: store and retrieve knowledge
- File and HTTP operations
- Functional programming with closures and higher-order functions

aec/Cargo.toml

@@ -0,0 +1,14 @@
+[package]
+name = "aec"
+version = "0.1.0"
+edition = "2021"
+
+[[bin]]
+name = "aec"
+path = "src/main.rs"
+
+[dependencies]
+serde = { version = "1", features = ["derive"] }
+serde_json = "1"
+sha3 = "0.10"
+hex = "0.4"