refactor(firmware): centralize configuration and diagnostics

firmware/boards/geprc-f722-v2/Cargo.toml

@@ -10,8 +10,11 @@ build = "build.rs"
 workspace = true
 
 [dependencies]
-kaptan-board = { path = "../../libs/kaptan-board" }
+kaptan-config = { path = "../../libs/kaptan-config" }
 platform-stm32f7 = { path = "../../platforms/stm32f7" }
+# RTIC's attribute expansion emits absolute `rtic` support paths in the final
+# board crate; the task graph and all RTIC source remain platform-owned.
+rtic = { version = "2.3", default-features = false, features = ["thumbv7-backend"] }
 
 [[bin]]
 name = "kaptan-geprc-f722-v2"