add all crates: domain, protocol, application, client, adapters, ESP32 firmware

Server: domain (entities, value objects, ports), protocol (postcard wire types),
application (config service, data projection), adapters (config-memory, tcp-server),
bootstrap (composition root with fake data).

Client: client-domain (layout engine, render tree, HAL ports),
client-application (message handling, repaint commands),
adapters (tcp-client, display-terminal), client-desktop (end-to-end working).

ESP32: client-esp32 firmware with ILI9341 display over SPI, WiFi networking.
Display test verified on hardware — landscape orientation, text rendering works.

60 workspace tests, all passing.

Cargo.toml

@@ -1,5 +1,32 @@
 [workspace]
-members = []
+members = [
+    "crates/domain",
+    "crates/protocol",
+    "crates/application",
+    "crates/client-domain",
+    "crates/client-application",
+    "crates/adapters/config-memory",
+    "crates/adapters/tcp-server",
+    "crates/adapters/tcp-client",
+    "crates/adapters/display-terminal",
+    "crates/bootstrap",
+    "crates/client-desktop",
+]
+exclude = [
+    "crates/client-esp32",
+]
 resolver = "2"
 
 [workspace.dependencies]
+domain = { path = "crates/domain" }
+protocol = { path = "crates/protocol" }
+application = { path = "crates/application" }
+client-domain = { path = "crates/client-domain" }
+client-application = { path = "crates/client-application" }
+config-memory = { path = "crates/adapters/config-memory" }
+tcp-server = { path = "crates/adapters/tcp-server" }
+tcp-client = { path = "crates/adapters/tcp-client" }
+display-terminal = { path = "crates/adapters/display-terminal" }
+serde = { version = "1.0", default-features = false, features = ["derive", "alloc"] }
+postcard = { version = "1.1", default-features = false, features = ["alloc"] }
+tokio = { version = "1.0", features = ["macros", "rt", "rt-multi-thread", "net", "sync", "time", "io-util"] }