feat: add bounded TCS brains and channel continuity

tcs-core/channel-system/guanghu-broadcast-contract.json

@@ -0,0 +1,54 @@
+{
+  "schema": "guanghu.broadcast-contract/v1",
+  "contract_id": "GH-BROADCAST-0001",
+  "purpose": "Compile a language broadcast through draft, confirmation, dispatch, delivery, target acceptance and scoped verification without using model text as its own receipt.",
+  "required_fields": [
+    "broadcast_id",
+    "action",
+    "current_state",
+    "issuer",
+    "source_layer",
+    "channel_id",
+    "audience",
+    "purpose",
+    "claim_layer",
+    "payload_ref",
+    "payload_digest",
+    "requested_effect"
+  ],
+  "states": [
+    "DRAFTED",
+    "LANGUAGE_CONFIRMED",
+    "DISPATCH_ELIGIBLE",
+    "DISPATCHED",
+    "DELIVERED",
+    "TARGET_ACCEPTED",
+    "REALITY_VERIFIED",
+    "SUPERSEDED",
+    "REJECTED"
+  ],
+  "actions": [
+    "DRAFT",
+    "CONFIRM_LANGUAGE",
+    "CHECK_DISPATCH",
+    "DISPATCH",
+    "REPORT_DELIVERY",
+    "TARGET_ACCEPT",
+    "VERIFY_EFFECT",
+    "CORRECT",
+    "REJECT"
+  ],
+  "hard_invariants": {
+    "draft_is_not_broadcast": true,
+    "language_confirmation_is_not_dispatch": true,
+    "dispatch_is_not_delivery": true,
+    "delivery_is_not_target_acceptance": true,
+    "target_acceptance_is_not_external_effect_verification": true,
+    "local_receive_is_not_external_publish": true,
+    "model_response_is_not_dispatch_delivery_acceptance_or_reality_receipt": true,
+    "broadcast_never_grants_persona_identity_relationship_or_authority_automatically": true,
+    "every_target_requires_its_own_delivery_and_acceptance_proof": true,
+    "correction_supersedes_an_addressable_prior_broadcast": true,
+    "legacy_national_global_permanent_blockchain_finance_language_remains_simulation_without_scoped_evidence": true
+  }
+}