feat(agent): add host policy foundation (#6273)

app/agent/policy/__init__.py

@@ -0,0 +1,66 @@
+"""MoviePilot Agent 宿主策略公共内部入口。"""
+
+from app.agent.policy.contracts import (
+    ActionEffect,
+    ActionPolicy,
+    AuthSource,
+    ConfirmationMode,
+    ExecutionOutcome,
+    ExecutionReceipt,
+    MigrationState,
+    PolicyDecision,
+    PolicyObservation,
+    PolicyPrincipal,
+    PrincipalRole,
+    PrincipalType,
+    RecoveryMode,
+    ResultSensitivity,
+    ToolInvocation,
+    ToolOrigin,
+    ToolPolicyContext,
+)
+from app.agent.policy.orchestrator import (
+    DEFAULT_TOOL_POLICY_ORCHESTRATOR,
+    AgentToolPolicyOrchestrator,
+    call_policy_hook,
+)
+from app.agent.policy.registry import DEFAULT_TOOL_POLICY_REGISTRY, ToolPolicyRegistry
+from app.agent.policy.sanitizer import (
+    REDACTED_VALUE,
+    sanitize_for_host,
+    stable_type_name,
+    summarize_error,
+    summarize_input,
+    summarize_result,
+)
+
+__all__ = [
+    "ActionEffect",
+    "ActionPolicy",
+    "AgentToolPolicyOrchestrator",
+    "AuthSource",
+    "ConfirmationMode",
+    "DEFAULT_TOOL_POLICY_ORCHESTRATOR",
+    "DEFAULT_TOOL_POLICY_REGISTRY",
+    "ExecutionOutcome",
+    "ExecutionReceipt",
+    "MigrationState",
+    "PolicyDecision",
+    "PolicyObservation",
+    "PolicyPrincipal",
+    "PrincipalRole",
+    "PrincipalType",
+    "REDACTED_VALUE",
+    "RecoveryMode",
+    "ResultSensitivity",
+    "ToolInvocation",
+    "ToolOrigin",
+    "ToolPolicyContext",
+    "ToolPolicyRegistry",
+    "call_policy_hook",
+    "sanitize_for_host",
+    "stable_type_name",
+    "summarize_error",
+    "summarize_input",
+    "summarize_result",
+]