diff --git a/core/model-framework/registry_api.py b/core/model-framework/registry_api.py
new file mode 100644
index 0000000..b258fba
--- /dev/null
+++ b/core/model-framework/registry_api.py
@@ -0,0 +1,341 @@
+# -*- coding: utf-8 -*-
+"""模型注册表 HTTP 服务 —— issue #182 [E1]（PRD 5.3 服务化）。
+
+标准库 http.server（零依赖，对齐 core/auth/auth_api.py 风格），暴露：
+
+- GET  /api/v1/registry/models                列表（?stage= 过滤）→ 200
+- POST /api/v1/registry/models                注册新版本（写）   → 201
+- POST /api/v1/registry/models/<name>/<ver>/promote  阶段提升（写）→ 200
+- POST /api/v1/registry/models/<name>/rollback       回滚（写）   → 200
+
+鉴权双轨：
+- FBA 轨：`Authorization: Bearer <FBA JWT>`（FBA_TOKEN_SECRET_KEY 配置时启用），
+  写操作要求权限码 `iaop:admin` 或 `iaop:studio`（回源 FBA /auth/codes）；
+- 降级轨：core/auth 会话 token（iaop_session），写操作要求 engineer/admin 角色。
+
+数据：服务端 JSON 持久化（REGISTRY_DATA_DIR 可挂卷）；首次启动种子 4 条演示模型。
+
+运行：python -m core.model_framework.registry_api（默认 :8002 绑定 127.0.0.1）
+nginx 反代约定见 deploy/fba/README.md（/api/v1/registry/ → 本服务）。
+"""
+from __future__ import annotations
+
+import importlib.util
+import json
+import os
+import sys
+from http import HTTPStatus
+from http.server import BaseHTTPRequestHandler, ThreadingHTTPServer
+from typing import Any, Dict, List, Optional, Tuple
+
+
+def _load_package(name: str, path: str) -> None:
+    """连字符目录 → 可导入包（core/model-framework → model_framework；core/auth → auth）。"""
+    if name in sys.modules:
+        return
+    init_py = os.path.join(path, "__init__.py")
+    spec = importlib.util.spec_from_file_location(
+        name, init_py, submodule_search_locations=[path])
+    module = importlib.util.module_from_spec(spec)
+    sys.modules[name] = module
+    spec.loader.exec_module(module)
+
+
+_PKG_DIR = os.path.dirname(os.path.abspath(__file__))   # core/model-framework
+_CORE_DIR = os.path.dirname(_PKG_DIR)                   # core
+_load_package("model_framework", _PKG_DIR)
+_load_package("auth", os.path.join(_CORE_DIR, "auth"))
+
+from model_framework.template_registry import (  # noqa: E402
+    ModelTemplate, Stage, TemplateRegistry, TemplateRegistryError,
+    next_stage,
+)
+from auth.fba_jwt import FbaAuth, FbaAuthError  # noqa: E402
+from auth.users import UserStore  # noqa: E402
+from auth.session import parse_token  # noqa: E402
+
+WRITE_CODES = {"iaop:admin", "iaop:studio"}   # FBA 权限码（写操作）
+FALLBACK_WRITE_ROLES = ("engineer", "admin")  # 降级轨角色
+
+# 种子模型（对齐前端 models.vue 演示数据，首次启动初始化）
+SEED_MODELS: List[Dict[str, Any]] = [
+    {"name": "quality_forecast", "version": "v2.1.0", "stage": "prod",
+     "backbone": "quality_forecast", "description": "TiCl4 纯度预测（GBDT）"},
+    {"name": "quality_forecast", "version": "v2.2.0", "stage": "staging",
+     "backbone": "quality_forecast", "description": "TiCl4 纯度预测（DNN）"},
+    {"name": "anomaly_detection", "version": "v1.4.0", "stage": "prod",
+     "backbone": "anomaly_detection", "description": "炉温异常检测（iForest）"},
+    {"name": "cross_process_optimizer", "version": "v1.1.0", "stage": "dev",
+     "backbone": "cross_process_opt", "description": "跨工序寻优"},
+]
+
+
+class RegistryError(Exception):
+    def __init__(self, status: int, message: str) -> None:
+        super().__init__(message)
+        self.status = status
+        self.message = message
+
+
+# ---------------------------------------------------------------------------
+# 服务
+# ---------------------------------------------------------------------------
+
+class RegistryService:
+    """持有 TemplateRegistry 与数据文件路径（进程级单例，handler 共享）。"""
+
+    def __init__(self, data_file: str,
+                 user_store: Optional[UserStore] = None) -> None:
+        self.data_file = data_file
+        os.makedirs(os.path.dirname(data_file) or ".", exist_ok=True)
+        self.registry = self._load_or_seed()
+        self.fba: Optional[FbaAuth] = FbaAuth.from_env()
+        # 降级轨用户源：默认 bootstrap admin（admin/change-me-now，id=1）；
+        # 测试/生产可注入共享 UserStore（与 auth_api 同源）。
+        self._store = user_store
+        if self._store is None:
+            self._store = UserStore()
+            self._store.ensure_bootstrap_admin("admin", "change-me-now")
+
+    def _load_or_seed(self) -> TemplateRegistry:
+        if os.path.exists(self.data_file):
+            return TemplateRegistry.load(self.data_file)
+        reg = TemplateRegistry()
+        for m in SEED_MODELS:
+            stage = Stage.from_str(m["stage"])
+            reg.register(ModelTemplate(
+                name=m["name"], version=m["version"], backbone=m["backbone"],
+                description=m.get("description", ""), stage=stage,
+            ))
+            reg.set_stage(m["name"], m["version"], stage)
+        self._save(reg)
+        return reg
+
+    def _save(self, reg: Optional[TemplateRegistry] = None) -> None:
+        (reg or self.registry).save(self.data_file)
+
+    # ---- 鉴权 ----------------------------------------------------------
+    def auth(self, headers: Dict[str, str]) -> Tuple[str, Any]:
+        """校验请求身份，返回 (mode, principal)；失败抛 RegistryError(401)。"""
+        authorization = (headers.get("Authorization") or "").strip()
+        if self.fba is not None and authorization.startswith("Bearer "):
+            try:
+                claims = self.fba.verify(authorization)
+                codes = self.fba.get_codes(authorization)
+                return ("fba", {"user": claims.get("sub"), "codes": codes})
+            except FbaAuthError as exc:
+                raise RegistryError(exc.status, exc.message)
+        # 降级轨：core/auth 会话 token
+        token = authorization[7:].strip() if authorization.startswith("Bearer ") else ""
+        if not token:
+            cookie = (headers.get("Cookie") or "").split(";")
+            for part in cookie:
+                k, _, v = part.strip().partition("=")
+                if k == "iaop_session":
+                    token = v
+        sess = parse_token(token) if token else None
+        if sess is None:
+            raise RegistryError(HTTPStatus.UNAUTHORIZED, "未登录或会话已过期")
+        user = self._store.get(sess.user_id)
+        if user is None or not user.active:
+            raise RegistryError(HTTPStatus.UNAUTHORIZED, "账号不可用")
+        return ("fallback", user)
+
+    def require_write(self, mode: str, principal: Any) -> None:
+        """写操作权限守卫：FBA 权限码或降级角色。"""
+        if mode == "fba":
+            codes = principal.get("codes") or set()
+            if not codes.intersection(WRITE_CODES):
+                raise RegistryError(
+                    HTTPStatus.FORBIDDEN,
+                    "权限不足：需要 iaop:admin 或 iaop:studio 权限码")
+            return
+        role = getattr(principal, "role", "")
+        if role not in FALLBACK_WRITE_ROLES:
+            raise RegistryError(
+                HTTPStatus.FORBIDDEN,
+                f"权限不足：当前角色 {role or 'unknown'} 不可执行写操作")
+
+
+# ---------------------------------------------------------------------------
+# HTTP Handler
+# ---------------------------------------------------------------------------
+
+class RegistryAPIHandler(BaseHTTPRequestHandler):
+    server: "RegistryHTTPServer"
+
+    def log_message(self, fmt: str, *args: Any) -> None:
+        print(f"[registry] {self.address_string()} {fmt % args}", flush=True)
+
+    # ---- 路由 ------------------------------------------------------------
+    def _route(self) -> None:
+        parts = [p for p in (self.path.split("?", 1)[0]).split("/") if p]
+        # 期望：api/v1/registry/models[...]
+        if len(parts) < 4 or parts[:4] != ["api", "v1", "registry", "models"]:
+            raise RegistryError(HTTPStatus.NOT_FOUND, "未找到路由")
+        tail = parts[4:]
+        if self.command == "GET" and not tail:
+            self._list_models()
+        elif self.command == "POST" and not tail:
+            self._register()
+        elif (self.command == "POST" and len(tail) == 3
+              and tail[2] == "promote"):
+            self._promote(tail[0], tail[1])
+        elif (self.command == "POST" and len(tail) == 2
+              and tail[1] == "rollback"):
+            self._rollback(tail[0])
+        else:
+            raise RegistryError(HTTPStatus.NOT_FOUND, "未找到路由")
+
+    def _read_body(self) -> Dict[str, Any]:
+        try:
+            length = int(self.headers.get("Content-Length") or 0)
+        except ValueError:
+            raise RegistryError(HTTPStatus.BAD_REQUEST, "Content-Length 非法")
+        if length <= 0:
+            return {}
+        raw = self.rfile.read(length)
+        try:
+            return json.loads(raw.decode("utf-8") or "{}")
+        except (ValueError, UnicodeDecodeError):
+            raise RegistryError(HTTPStatus.BAD_REQUEST, "请求体不是合法 JSON")
+
+    # ---- GET /api/v1/registry/models -------------------------------------
+    def _list_models(self) -> None:
+        stage_filter = self._query("stage")
+        mode, principal = self.server.svc.auth(self.headers)   # 读接口也要求登录
+        reg = self.server.svc.registry
+        out: List[Dict[str, Any]] = []
+        for name in sorted(reg.list_names()):
+            for ver in reg.list_versions(name):
+                tpl = reg.get(name, version=ver)
+                if stage_filter and tpl.stage.value != stage_filter:
+                    continue
+                out.append(tpl.to_dict())
+        self._json(HTTPStatus.OK, {
+            "models": out,
+            "auth_mode": mode,
+            "user": principal.get("user") if mode == "fba"
+            else getattr(principal, "username", None),
+        })
+
+    # ---- POST /api/v1/registry/models ------------------------------------
+    def _register(self) -> None:
+        mode, principal = self.server.svc.auth(self.headers)
+        self.server.svc.require_write(mode, principal)
+        body = self._read_body()
+        name = (body.get("name") or "").strip()
+        version = (body.get("version") or "").strip()
+        if not name or not version:
+            raise RegistryError(HTTPStatus.BAD_REQUEST, "name / version 必填")
+        try:
+            stage = Stage.from_str((body.get("stage") or "dev"))
+        except ValueError:
+            raise RegistryError(HTTPStatus.BAD_REQUEST, "stage 非法（dev/staging/prod）")
+        tpl = ModelTemplate(
+            name=name, version=version,
+            backbone=(body.get("backbone") or "generic"),
+            description=(body.get("description") or ""),
+            stage=stage,
+        )
+        try:
+            self.server.svc.registry.register(tpl)
+            self.server.svc.registry.set_stage(name, version, stage)
+        except TemplateRegistryError as exc:
+            raise RegistryError(HTTPStatus.CONFLICT, str(exc))
+        self.server.svc._save()
+        self._json(HTTPStatus.CREATED, {"ok": True, "model": tpl.to_dict()})
+
+    # ---- POST .../{name}/{version}/promote --------------------------------
+    def _promote(self, name: str, version: str) -> None:
+        mode, principal = self.server.svc.auth(self.headers)
+        self.server.svc.require_write(mode, principal)
+        try:
+            tpl = self.server.svc.registry.promote(name, version)
+        except TemplateRegistryError as exc:
+            raise RegistryError(HTTPStatus.CONFLICT, str(exc))
+        self.server.svc._save()
+        self._json(HTTPStatus.OK, {"ok": True, "model": tpl.to_dict()})
+
+    # ---- POST .../{name}/rollback -----------------------------------------
+    def _rollback(self, name: str) -> None:
+        mode, principal = self.server.svc.auth(self.headers)
+        self.server.svc.require_write(mode, principal)
+        body = self._read_body()
+        stage_str = (body.get("stage") or "prod")
+        version = (body.get("version") or "").strip()
+        if not version:
+            raise RegistryError(HTTPStatus.BAD_REQUEST, "version 必填")
+        try:
+            stage = Stage.from_str(stage_str)
+        except ValueError:
+            raise RegistryError(HTTPStatus.BAD_REQUEST, "stage 非法")
+        try:
+            tpl = self.server.svc.registry.rollback(name, stage, version)
+        except TemplateRegistryError as exc:
+            raise RegistryError(HTTPStatus.CONFLICT, str(exc))
+        self.server.svc._save()
+        ptrs = self.server.svc.registry._stage_pointers.get(name, {})
+        self._json(HTTPStatus.OK, {
+            "ok": True, "model": tpl.to_dict(), "stage": stage.value,
+            "pointers": {st.value: ver for st, ver in ptrs.items()},
+        })
+
+    # ---- 辅助 -------------------------------------------------------------
+    def _query(self, key: str) -> Optional[str]:
+        query = self.path.split("?", 1)[1] if "?" in self.path else ""
+        for pair in query.split("&"):
+            k, _, v = pair.partition("=")
+            if k == key:
+                return v
+        return None
+
+    def _json(self, status: int, payload: Dict[str, Any]) -> None:
+        data = json.dumps(payload, ensure_ascii=False).encode("utf-8")
+        self.send_response(status)
+        self.send_header("Content-Type", "application/json; charset=utf-8")
+        self.send_header("Content-Length", str(len(data)))
+        self.end_headers()
+        self.wfile.write(data)
+
+    # ---- 入口 -------------------------------------------------------------
+    def do_GET(self) -> None:
+        self._dispatch()
+
+    def do_POST(self) -> None:
+        self._dispatch()
+
+    def _dispatch(self) -> None:
+        try:
+            self._route()
+        except RegistryError as exc:
+            self._json(exc.status, {"code": exc.status, "msg": exc.message})
+        except Exception as exc:  # noqa: BLE001
+            self._json(HTTPStatus.INTERNAL_SERVER_ERROR,
+                       {"code": 500, "msg": f"服务器内部错误: {exc}"})
+
+
+class RegistryHTTPServer(ThreadingHTTPServer):
+    daemon_threads = True
+
+    def __init__(self, addr: Tuple[str, int], svc: RegistryService) -> None:
+        self.svc = svc
+        super().__init__(addr, RegistryAPIHandler)
+
+
+def make_server(port: int = 8002, data_dir: str = "",
+                user_store: Optional[UserStore] = None) -> RegistryHTTPServer:
+    data_dir = data_dir or os.environ.get(
+        "REGISTRY_DATA_DIR", os.path.join("deploy", "data", "registry"))
+    data_file = os.path.join(data_dir, "registry.json")
+    svc = RegistryService(data_file, user_store=user_store)
+    return RegistryHTTPServer(("127.0.0.1", port), svc)
+
+
+if __name__ == "__main__":
+    port = int(os.environ.get("REGISTRY_PORT", "8002"))
+    server = make_server(port)
+    print(f"[registry] 模型注册表服务监听 :{port} "
+          f"（data={server.svc.data_file}，fba_auth={server.svc.fba is not None}）",
+          flush=True)
+    server.serve_forever()
diff --git a/core/model-framework/tests/test_registry_api.py b/core/model-framework/tests/test_registry_api.py
new file mode 100644
index 0000000..3d67880
--- /dev/null
+++ b/core/model-framework/tests/test_registry_api.py
@@ -0,0 +1,199 @@
+# -*- coding: utf-8 -*-
+"""registry_api 单测 —— issue #182 [E1]：promote / rollback / 权限拒绝 / 持久化。
+
+运行：python -m unittest discover -s core/model-framework/tests -p "test_registry_api.py"
+或：python core/model-framework/tests/test_registry_api.py
+"""
+from __future__ import annotations
+
+import http.client
+import json
+import os
+import sys
+import tempfile
+import threading
+import unittest
+
+HERE = os.path.dirname(os.path.abspath(__file__))
+if HERE not in sys.path:
+    sys.path.insert(0, HERE)
+
+import _bootstrap  # noqa: E402  加载 model_framework 包（registry_api 自加载 auth 包）
+
+from model_framework.registry_api import make_server  # noqa: E402
+from auth.session import issue_token  # noqa: E402
+from auth.users import UserStore  # noqa: E402
+
+
+class RegistryApiTest(unittest.TestCase):
+    @classmethod
+    def setUpClass(cls) -> None:
+        cls._tmp = tempfile.mkdtemp(prefix="iaop-registry-test-")
+        os.environ.pop("FBA_TOKEN_SECRET_KEY", None)  # 强制降级轨
+        # 用户：readonly（只读）/ engineer（写） / admin（写）
+        cls.store = UserStore()
+        cls.store.create("viewer1", "pass1234", role="readonly")
+        cls.store.create("engineer1", "pass1234", role="engineer")
+        cls.store.create("admin1", "pass1234", role="admin")
+        cls.tok_viewer = issue_token(1)  # readonly（只读，写操作应 403）
+        cls.tok_engineer = issue_token(2)
+        cls.tok_admin = issue_token(3)
+        cls.server = make_server(port=0, data_dir=cls._tmp, user_store=cls.store)
+        cls.port = cls.server.server_address[1]
+        cls.thread = threading.Thread(
+            target=cls.server.serve_forever, daemon=True)
+        cls.thread.start()
+        # 用户：viewer（只读）/ engineer（写） / admin（写）
+        cls.store = UserStore()
+        cls.store.create("viewer1", "pass1234", role="readonly")
+        cls.store.create("engineer1", "pass1234", role="engineer")
+        cls.store.create("admin1", "pass1234", role="admin")
+        cls.tok_viewer = issue_token(1)  # readonly（只读，写操作应 403）
+        cls.tok_engineer = issue_token(2)
+        cls.tok_admin = issue_token(3)
+
+    @classmethod
+    def tearDownClass(cls) -> None:
+        cls.server.shutdown()
+        cls.server.server_close()
+
+    # ---- 工具 ----------------------------------------------------------
+    def _req(self, method, path, token=None, body=None):
+        conn = http.client.HTTPConnection("127.0.0.1", self.port, timeout=5)
+        headers = {}
+        if token:
+            headers["Authorization"] = f"Bearer {token}"
+        data = json.dumps(body).encode() if body is not None else None
+        if data is not None:
+            headers["Content-Type"] = "application/json"
+        conn.request(method, path, body=data, headers=headers)
+        resp = conn.getresponse()
+        raw = resp.read().decode("utf-8")
+        conn.close()
+        return resp.status, (json.loads(raw) if raw else {})
+
+    # ---- 鉴权拒绝路径 ----------------------------------------------------
+    def test_401_without_token(self):
+        st, _ = self._req("GET", "/api/v1/registry/models")
+        self.assertEqual(st, 401)
+
+    def test_403_viewer_cannot_write(self):
+        st, body = self._req("POST", "/api/v1/registry/models",
+                             token=self.tok_viewer,
+                             body={"name": "x", "version": "v1.0.0"})
+        self.assertEqual(st, 403)
+        self.assertIn("权限不足", body.get("msg", ""))
+
+    def test_403_viewer_cannot_promote(self):
+        st, _ = self._req("POST", "/api/v1/registry/models/quality_forecast/v1.0.0/promote",
+                          token=self.tok_viewer)
+        self.assertEqual(st, 403)
+
+    # ---- 读接口 ---------------------------------------------------------
+    def test_list_seeded(self):
+        st, body = self._req("GET", "/api/v1/registry/models",
+                             token=self.tok_admin)
+        self.assertEqual(st, 200)
+        self.assertEqual(len(body.get("models", [])), 4)
+        names = {m["name"] for m in body["models"]}
+        self.assertEqual(names,
+                         {"quality_forecast", "anomaly_detection",
+                          "cross_process_optimizer"})
+        # 种子阶段：quality_forecast 有 prod(v2.1.0) 与 staging(v2.2.0)
+        qf = [m for m in body["models"] if m["name"] == "quality_forecast"]
+        self.assertEqual({m["stage"] for m in qf}, {"prod", "staging"})
+
+    def test_list_filter_by_stage(self):
+        st, body = self._req("GET", "/api/v1/registry/models?stage=prod",
+                             token=self.tok_admin)
+        self.assertEqual(st, 200)
+        self.assertTrue(all(m["stage"] == "prod" for m in body["models"]))
+
+    # ---- 注册 -----------------------------------------------------------
+    def test_register_new(self):
+        st, body = self._req("POST", "/api/v1/registry/models",
+                             token=self.tok_engineer,
+                             body={"name": "temp_control",
+                                   "version": "v1.0.0",
+                                   "backbone": "generic",
+                                   "description": "炉温控制模板",
+                                   "stage": "dev"})
+        self.assertEqual(st, 201)
+        self.assertTrue(body.get("ok"))
+        # 已在列表
+        st2, b2 = self._req("GET", "/api/v1/registry/models",
+                            token=self.tok_admin)
+        self.assertIn("temp_control",
+                      {m["name"] for m in b2["models"]})
+
+    def test_register_duplicate_conflict(self):
+        st, _ = self._req("POST", "/api/v1/registry/models",
+                          token=self.tok_engineer,
+                          body={"name": "quality_forecast",
+                                "version": "v2.1.0"})
+        self.assertEqual(st, 409)
+
+    # ---- promote / rollback ----------------------------------------------
+    def test_promote_flow(self):
+        # 注册 v9.9.9 → dev；逐级提升 → staging → prod
+        st, _ = self._req("POST", "/api/v1/registry/models",
+                          token=self.tok_admin,
+                          body={"name": "flow_test", "version": "v9.9.9",
+                                "stage": "dev"})
+        self.assertEqual(st, 201)
+        for _ in range(2):  # dev→staging→prod
+            st, body = self._req(
+                "POST", "/api/v1/registry/models/flow_test/v9.9.9/promote",
+                token=self.tok_admin)
+            self.assertEqual(st, 200, body)
+            self.assertTrue(body.get("ok"))
+        st, body = self._req("GET", "/api/v1/registry/models?stage=prod",
+                             token=self.tok_admin)
+        ft = [m for m in body["models"]
+              if m["name"] == "flow_test" and m["version"] == "v9.9.9"]
+        self.assertTrue(ft and ft[0]["stage"] == "prod")
+
+    def test_rollback(self):
+        # 把 quality_forecast 的 prod 指针回滚到 v2.2.0（原 staging 版本）
+        st, body = self._req("POST", "/api/v1/registry/models/quality_forecast/rollback",
+                             token=self.tok_admin,
+                             body={"stage": "prod", "version": "v2.2.0"})
+        self.assertEqual(st, 200, body)
+        self.assertEqual(body["stage"], "prod")
+        self.assertEqual(body["pointers"].get("prod"), "v2.2.0")
+
+    def test_promote_unknown_model_404(self):
+        st, body = self._req("POST", "/api/v1/registry/models/nope/v1.0.0/promote",
+                          token=self.tok_admin)
+        # TemplateRegistry 对未知模型抛 TemplateRegistryError → 409
+        self.assertEqual(st, 409)
+
+    # ---- 持久化 ---------------------------------------------------------
+    def test_persistence_after_restart(self):
+        # 自包含：先注册 persist_check，再重启读同一数据文件
+        st, _ = self._req("POST", "/api/v1/registry/models",
+                          token=self.tok_admin,
+                          body={"name": "persist_check", "version": "v1.0.0",
+                                "stage": "dev"})
+        self.assertEqual(st, 201)
+        server2 = make_server(port=0, data_dir=self._tmp, user_store=self.store)
+        port2 = server2.server_address[1]
+        t2 = threading.Thread(target=server2.serve_forever, daemon=True)
+        t2.start()
+        try:
+            conn = http.client.HTTPConnection("127.0.0.1", port2, timeout=5)
+            conn.request("GET", "/api/v1/registry/models",
+                         headers={"Authorization": f"Bearer {self.tok_admin}"})
+            resp = conn.getresponse()
+            body = json.loads(resp.read().decode("utf-8"))
+            conn.close()
+            self.assertEqual(resp.status, 200)
+            names = {m["name"] for m in body["models"]}
+            self.assertIn("persist_check", names)
+        finally:
+            server2.shutdown()
+            server2.server_close()
+
+
+if __name__ == "__main__":
+    unittest.main(verbosity=2)
diff --git a/deploy/fba/README.md b/deploy/fba/README.md
index d17cabe..2e92e00 100644
--- a/deploy/fba/README.md
+++ b/deploy/fba/README.md
@@ -150,3 +150,17 @@ docker exec -it fba_postgres psql -U postgres -d fba       # 进数据库
 ### 旧架构存档
 - `web/` 静态演示外壳保留（FBA 停掉时兜底；/index.html、/auth/login.html 已加 C1 自动收口跳转）
 - 旧登录页三轨会话已精简为 FBA 单轨（session.js，FBA 接入版）
+
+### 模型注册表服务（issue #182 [E1]，PRD 5.3 服务化）
+- 代码：`core/model-framework/registry_api.py`（标准库 http.server，零依赖）
+- 运行：`REGISTRY_DATA_DIR=<可挂卷目录> python3 core/model-framework/registry_api.py`（默认 :8002，绑定 127.0.0.1）
+- 数据：`REGISTRY_DATA_DIR/registry.json`（JSON 持久化；首次启动种子 4 条演示模型）
+- 鉴权双轨：FBA JWT（`FBA_TOKEN_SECRET_KEY` 配置时启用，写操作要求 `iaop:admin`/`iaop:studio` 权限码）；未配置时降级 core/auth 会话（engineer/admin 角色可写）
+- **nginx 反代约定**（加到宿主机 nginx server）：
+  ```nginx
+  location /api/v1/registry/ {
+      proxy_pass http://127.0.0.1:8002;
+      proxy_set_header Host $host;
+  }
+  ```
+- 单测：`python core/model-framework/tests/test_registry_api.py`（11 用例：promote/rollback/403 权限拒绝/401/持久化）