feat(memory): model memory as a userland extension — implements #3537

Cargo.toml

@@ -1,5 +1,5 @@
 [workspace]
-members = [".", "crates/ironclaw_common", "crates/ironclaw_host_api", "crates/ironclaw_filesystem", "crates/ironclaw_attachments", "crates/ironclaw_extractors", "crates/ironclaw_memory", "crates/ironclaw_memory_native", "crates/ironclaw_events", "crates/ironclaw_event_projections", "crates/ironclaw_event_streams", "crates/ironclaw_reborn_event_store", "crates/ironclaw_extensions", "crates/ironclaw_processes", "crates/ironclaw_dispatcher", "crates/ironclaw_scripts", "crates/ironclaw_process_sandbox", "crates/ironclaw_mcp", "crates/ironclaw_wasm", "crates/ironclaw_wasm_sandbox_core", "crates/ironclaw_wasm_limiter", "crates/ironclaw_capabilities", "crates/ironclaw_secrets", "crates/ironclaw_network", "crates/ironclaw_host_runtime", "crates/ironclaw_runtime_policy", "crates/ironclaw_authorization", "crates/ironclaw_run_state", "crates/ironclaw_approvals", "crates/ironclaw_resources", "crates/ironclaw_auth", "crates/ironclaw_trust", "crates/ironclaw_turns", "crates/ironclaw_agent_loop", "crates/ironclaw_threads", "crates/ironclaw_prompt_envelope", "crates/ironclaw_hooks", "crates/ironclaw_hooks_postgres", "crates/ironclaw_hooks_libsql", "crates/ironclaw_hooks_parity", "crates/ironclaw_loop_support", "crates/ironclaw_reborn", "crates/ironclaw_reborn_config", "crates/ironclaw_reborn_composition", "crates/ironclaw_reborn_identity", "crates/ironclaw_first_party_extensions", "crates/ironclaw_reborn_cli", "crates/ironclaw_reborn_traces", "crates/ironclaw_reborn_webui_ingress", "crates/ironclaw_reborn_openai_compat", "crates/ironclaw_reborn_openai_compat_storage", "crates/ironclaw_conversations", "crates/ironclaw_product_adapters", "crates/ironclaw_product_context", "crates/ironclaw_product_workflow", "crates/ironclaw_product_workflow_storage", "crates/ironclaw_product_adapter_registry", "crates/ironclaw_wasm_product_adapters", "crates/ironclaw_telegram_v2_adapter", "crates/ironclaw_slack_v2_adapter", "crates/ironclaw_outbound", "crates/ironclaw_triggers", "crates/ironclaw_projects", "crates/ironclaw_architecture", "crates/ironclaw_safety", "crates/ironclaw_skills", "crates/ironclaw_oauth", "crates/ironclaw_llm", "crates/ironclaw_embeddings", "crates/ironclaw_engine", "crates/ironclaw_gateway", "crates/ironclaw_tui", "crates/ironclaw_webui_v2", "crates/ironclaw_webui_v2_static", "crates/ironclaw_skill_learning"]
+members = [".", "crates/ironclaw_common", "crates/ironclaw_host_api", "crates/ironclaw_filesystem", "crates/ironclaw_attachments", "crates/ironclaw_extractors", "crates/ironclaw_memory", "crates/ironclaw_memory_native", "crates/ironclaw_memory_mem0", "crates/ironclaw_events", "crates/ironclaw_event_projections", "crates/ironclaw_event_streams", "crates/ironclaw_reborn_event_store", "crates/ironclaw_extensions", "crates/ironclaw_processes", "crates/ironclaw_dispatcher", "crates/ironclaw_scripts", "crates/ironclaw_process_sandbox", "crates/ironclaw_mcp", "crates/ironclaw_wasm", "crates/ironclaw_wasm_sandbox_core", "crates/ironclaw_wasm_limiter", "crates/ironclaw_capabilities", "crates/ironclaw_secrets", "crates/ironclaw_network", "crates/ironclaw_host_runtime", "crates/ironclaw_runtime_policy", "crates/ironclaw_authorization", "crates/ironclaw_run_state", "crates/ironclaw_approvals", "crates/ironclaw_resources", "crates/ironclaw_auth", "crates/ironclaw_trust", "crates/ironclaw_turns", "crates/ironclaw_agent_loop", "crates/ironclaw_threads", "crates/ironclaw_prompt_envelope", "crates/ironclaw_hooks", "crates/ironclaw_hooks_postgres", "crates/ironclaw_hooks_libsql", "crates/ironclaw_hooks_parity", "crates/ironclaw_loop_support", "crates/ironclaw_reborn", "crates/ironclaw_reborn_config", "crates/ironclaw_reborn_composition", "crates/ironclaw_reborn_identity", "crates/ironclaw_first_party_extensions", "crates/ironclaw_reborn_cli", "crates/ironclaw_reborn_traces", "crates/ironclaw_reborn_webui_ingress", "crates/ironclaw_reborn_openai_compat", "crates/ironclaw_reborn_openai_compat_storage", "crates/ironclaw_conversations", "crates/ironclaw_product_adapters", "crates/ironclaw_product_context", "crates/ironclaw_product_workflow", "crates/ironclaw_product_workflow_storage", "crates/ironclaw_product_adapter_registry", "crates/ironclaw_wasm_product_adapters", "crates/ironclaw_telegram_v2_adapter", "crates/ironclaw_slack_v2_adapter", "crates/ironclaw_outbound", "crates/ironclaw_triggers", "crates/ironclaw_projects", "crates/ironclaw_architecture", "crates/ironclaw_safety", "crates/ironclaw_skills", "crates/ironclaw_oauth", "crates/ironclaw_llm", "crates/ironclaw_embeddings", "crates/ironclaw_engine", "crates/ironclaw_gateway", "crates/ironclaw_tui", "crates/ironclaw_webui_v2", "crates/ironclaw_webui_v2_static", "crates/ironclaw_skill_learning"]
 exclude = [
     "channels-src/discord",
     "channels-src/feishu",