refactor: apply repository naming contract

Apply the accepted pre-release package, service, type, directory, and role renames as one repository-wide change.

python/sdk-runtime/src/deepseek_harness_runtime/runtime/cordis.yml

@@ -3,8 +3,8 @@
 # zero-config launches. SDK-set session-root and cwd variables have manual-run fallbacks.
 
 # Stdio JSON-RPC server entry; without it the agent has no SDK client.
-- id: jsonrpc
-  name: '@deepseek-ai/dsh-jsonrpc'
+- id: sdk-jsonrpc-server
+  name: '@deepseek-ai/dsh-sdk-jsonrpc-server'
 
 # Agent spine; the SDK server creates agents per sessionId.
 - id: agent-core