rename crates/ to engrams/, bindings/ to receptors/

- crates/ → engrams/ (Rust engrams live here)
- bindings/ → receptors/ (cross-language access points into the graph)
- Cargo.toml workspace paths updated

engram/engrams/engram-server/Cargo.toml

@@ -0,0 +1,37 @@
+[package]
+name = "engram-server"
+version = "0.1.0"
+edition = "2021"
+description = "HTTP server for Engram — REST API + sync endpoints + swarm activation"
+license = "MIT"
+
+[[bin]]
+name = "engram-server"
+path = "src/main.rs"
+
+[dependencies]
+engram-core = { path = "../engram-core" }
+engram-reasoning = { path = "../engram-reasoning" }
+engram-sync = { path = "../engram-sync" }
+engram-projection = { path = "../engram-projection" }
+engram-tx = { path = "../engram-tx" }
+engram-crypto = { path = "../engram-crypto" }
+sled = "0.34"
+axum = { version = "0.7", features = ["json"] }
+tokio = { version = "1", features = ["full"] }
+tower = "0.4"
+tower-http = { version = "0.5", features = ["cors", "fs"] }
+rust-embed = { version = "8", features = ["axum"] }
+mime_guess = "2"
+serde = { version = "1", features = ["derive"] }
+serde_json = "1"
+uuid = { version = "1", features = ["v4", "serde"] }
+anyhow = "1"
+thiserror = "1"
+tracing = "0.1"
+tracing-subscriber = { version = "0.3", features = ["env-filter"] }
+
+[dev-dependencies]
+axum-test = "14"
+tokio = { version = "1", features = ["full"] }
+tempfile = "3"