feat(invariants): scoped-dispatch carrier/subject checks and the setup-drives tripwire

Three dev-mode invariants close the leak-by-default regression class at
runtime: (1) every scope-filtered event family must dispatch with a scope
carrier — a bare dispatch throws at the call site naming the carrier rule;
(2) where the subject is recoverable from the arguments (agent/*, the tool
pipeline, prompt assembly) the carrier's key must BE that subject, and an
assembly context must never carry agent without scope (use
assembleContextFor); (3) a turn/start logged before the owning agent's
agent/session-start is the setup-drives teaching error (setup registers the
scoped world, it never drives the agent).

pnpm-lock.yaml

@@ -799,9 +799,18 @@ importers:
       '@deepseek-ai/dsh-llm':
         specifier: workspace:^
         version: link:../../llm/llm
+      '@deepseek-ai/dsh-scope':
+        specifier: workspace:^
+        version: link:../../core/scope
       '@deepseek-ai/dsh-session':
         specifier: workspace:^
         version: link:../../core/session
+      '@deepseek-ai/dsh-system-prompt':
+        specifier: workspace:^
+        version: link:../../core/system-prompt
+      '@deepseek-ai/dsh-tools':
+        specifier: workspace:^
+        version: link:../../core/tools
       cordis:
         specifier: ^4.0.0-rc.6
         version: 4.0.0-rc.6(@cordisjs/plugin-include@1.0.4)(@cordisjs/plugin-loader@1.0.0-rc.4)