diff --git a/.gitea/workflows/ci.yml b/.gitea/workflows/ci.yml
index 19afaec..e1ac90c 100644
--- a/.gitea/workflows/ci.yml
+++ b/.gitea/workflows/ci.yml
@@ -54,11 +54,17 @@ jobs:
       - name: Build eventhub image
         run: |
           set -euo pipefail
+          APP_VERSION="$(tr -d '[:space:]' < VERSION 2>/dev/null || echo 0.0)"
+          GIT_SHA="${GITHUB_SHA:0:12}"
+          BUILT_AT="$(date -u +%Y-%m-%dT%H:%M:%SZ)"
           bash scripts/retry-docker-build.sh 5 60 -- \
             docker buildx build \
               --network=host \
               --pull \
               --file docker/Dockerfile \
+              --build-arg "EVENTHUB_VERSION=${APP_VERSION}" \
+              --build-arg "EVENTHUB_GIT_SHA=${GIT_SHA}" \
+              --build-arg "EVENTHUB_BUILT_AT=${BUILT_AT}" \
               --tag eventhub:latest \
               --load \
               --provenance=false \
diff --git a/.gitea/workflows/deploy-stage.yml b/.gitea/workflows/deploy-stage.yml
index 0627971..54b7d19 100644
--- a/.gitea/workflows/deploy-stage.yml
+++ b/.gitea/workflows/deploy-stage.yml
@@ -1,40 +1,45 @@
 name: Deploy stage (core)
 
+# Auto после успешного CI на master: тот же sha-*, плюс floating :stage.
 on:
-  push:
-    tags:
-      - 'v*'
+  workflow_run:
+    workflows: [CI]
+    types: [completed]
+    branches: [master, main]
   workflow_dispatch:
-    inputs:
-      release_tag:
-        description: 'Release tag (например v0.1.1)'
-        required: true
-        default: 'v0.1.1'
-      sha_tag:
-        description: 'Образ sha-* (например sha-3f5dde498652)'
-        required: true
-        default: 'sha-3f5dde498652'
+
+concurrency:
+  group: eventhub-back-deploy-stage
+  cancel-in-progress: false
 
 env:
   REGISTRY: git.sabilin.com/eventhub
+  BUILDKIT_PROGRESS: quiet
+  DOCKER_BUILDKIT: 1
 
 jobs:
   deploy-stage-core:
+    if: |
+      github.event_name == 'workflow_dispatch' ||
+      (github.event_name == 'workflow_run' && github.event.workflow_run.conclusion == 'success')
     runs-on: ubuntu-latest
+    timeout-minutes: 90
     steps:
       - uses: actions/checkout@v4
+        with:
+          ref: ${{ github.event_name == 'workflow_run' && github.event.workflow_run.head_sha || github.sha }}
+          fetch-depth: 2
 
-      - name: Compute image tags
+      - name: Compute image tag
         id: meta
         run: |
           set -euo pipefail
-          if [ "${{ github.event_name }}" = "workflow_dispatch" ]; then
-            echo "sha_tag=${{ github.event.inputs.sha_tag }}" >> "$GITHUB_OUTPUT"
-            echo "release_tag=${{ github.event.inputs.release_tag }}" >> "$GITHUB_OUTPUT"
+          if [ "${{ github.event_name }}" = "workflow_run" ]; then
+            SHA="${{ github.event.workflow_run.head_sha }}"
           else
-            echo "sha_tag=sha-${GITHUB_SHA::12}" >> "$GITHUB_OUTPUT"
-            echo "release_tag=${GITHUB_REF_NAME}" >> "$GITHUB_OUTPUT"
+            SHA="${GITHUB_SHA}"
           fi
+          echo "tag=sha-${SHA:0:12}" >> "$GITHUB_OUTPUT"
 
       - name: Wait for Docker daemon
         run: bash scripts/ensure-docker-daemon.sh 240
@@ -49,14 +54,24 @@ jobs:
           username: ${{ secrets.REGISTRY_USER }}
           password: ${{ secrets.REGISTRY_PASSWORD }}
 
-      - name: Promote images (no rebuild)
+      - name: Verify core image from CI
+        run: |
+          set -euo pipefail
+          TAG="${{ steps.meta.outputs.tag }}"
+          if ! docker buildx imagetools inspect "${REGISTRY}/eventhub:${TAG}" >/dev/null 2>&1; then
+            echo "Образ eventhub:${TAG} не найден — CI push не завершился."
+            exit 1
+          fi
+          echo "OK: eventhub:${TAG}"
+
+      - name: Promote sha → :stage (no rebuild)
         env:
           REGISTRY_USER: ${{ secrets.REGISTRY_USER }}
           REGISTRY_PASSWORD: ${{ secrets.REGISTRY_PASSWORD }}
         run: |
           bash scripts/clone-devops-run.sh scripts/promote-images.sh \
-            "${{ steps.meta.outputs.sha_tag }}" \
-            "${{ steps.meta.outputs.release_tag }}" \
+            "${{ steps.meta.outputs.tag }}" \
+            "${{ steps.meta.outputs.tag }}" \
             stage \
             eventhub traefik-coraza fallback bot-emulator-users observer-web logrotate
 
@@ -69,7 +84,7 @@ jobs:
           script: |
             export REGISTRY_USER='${{ secrets.REGISTRY_USER }}'
             export REGISTRY_PASSWORD='${{ secrets.REGISTRY_PASSWORD }}'
-            bash /opt/eventhub-stage/devops/scripts/deploy-service.sh stage core ${{ steps.meta.outputs.release_tag }}
+            bash /opt/eventhub-stage/devops/scripts/deploy-service.sh stage core ${{ steps.meta.outputs.tag }}
 
       - name: Prune old registry images
         continue-on-error: true
diff --git a/VERSION b/VERSION
new file mode 100644
index 0000000..49d5957
--- /dev/null
+++ b/VERSION
@@ -0,0 +1 @@
+0.1
diff --git a/docker/Dockerfile b/docker/Dockerfile
index 35348ca..0d2b150 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -35,6 +35,14 @@ RUN collect-runtime-libs.sh /app/release /opt/runtime-libs
 # ============================================================
 FROM ${ERLANG_RUNTIME_IMAGE}
 
+ARG EVENTHUB_VERSION=0.0
+ARG EVENTHUB_GIT_SHA=unknown
+ARG EVENTHUB_BUILT_AT=
+
+ENV EVENTHUB_VERSION=${EVENTHUB_VERSION} \
+    EVENTHUB_GIT_SHA=${EVENTHUB_GIT_SHA} \
+    EVENTHUB_BUILT_AT=${EVENTHUB_BUILT_AT}
+
 COPY --from=builder /app/release /app
 # Доп. .so, если версия apk-openssl на runtime не совпала с builder (страховка)
 COPY --from=builder /opt/runtime-libs/ /
diff --git a/src/eventhub_app.erl b/src/eventhub_app.erl
index 201c476..3ac444b 100644
--- a/src/eventhub_app.erl
+++ b/src/eventhub_app.erl
@@ -119,6 +119,7 @@ start_admin_http() ->
     {'_', [
       % ================== БАЗОВЫЕ ==================
       {"/admin/health", admin_handler_health, []},
+      {"/v1/admin/health", admin_handler_health, []},
       {"/v1/admin/stats", admin_handler_stats, []},
       {"/v1/admin/nodes/metrics", admin_handler_node_metrics, []},
       {"/v1/admin/login", admin_handler_login, []},
diff --git a/src/handlers/admin/admin_handler_health.erl b/src/handlers/admin/admin_handler_health.erl
index 9722999..976c087 100644
--- a/src/handlers/admin/admin_handler_health.erl
+++ b/src/handlers/admin/admin_handler_health.erl
@@ -8,7 +8,7 @@
 init(Req, _State) ->
   case cowboy_req:method(Req) of
     <<"GET">> ->
-      handler_utils:send_json(Req, 200, #{status => <<"ok">>});
+      handler_utils:send_json(Req, 200, eventhub_build_info:info());
     _ ->
       handler_utils:send_error(Req, 405, <<"Method not allowed">>)
   end.
@@ -19,7 +19,7 @@ trails() ->
     #{
       path        => <<"/admin/health">>,
       method      => <<"GET">>,
-      description => <<"Admin API health check">>,
+      description => <<"Admin API health check with build identity">>,
       tags        => [<<"Health">>],
       responses   => #{
         200 => #{
@@ -27,10 +27,14 @@ trails() ->
           content     => #{<<"application/json">> => #{schema => #{
             type       => object,
             properties => #{
-              status => #{type => string}
+              status => #{type => string},
+              service => #{type => string},
+              version => #{type => string},
+              git_sha => #{type => string},
+              built_at => #{type => string}
             }
           }}}
         }
       }
     }
-  ].
\ No newline at end of file
+  ].
diff --git a/src/handlers/handler_health.erl b/src/handlers/handler_health.erl
index f19c273..017ea5c 100644
--- a/src/handlers/handler_health.erl
+++ b/src/handlers/handler_health.erl
@@ -1,6 +1,6 @@
 %%%-------------------------------------------------------------------
 %%% @doc Обработчик проверки здоровья клиентского API.
-%%% GET – возвращает статус сервера.
+%%% GET – возвращает статус сервера и build identity.
 %%% @end
 %%%-------------------------------------------------------------------
 -module(handler_health).
@@ -21,7 +21,7 @@ trails() ->
     #{
       path        => <<"/health">>,
       method      => <<"GET">>,
-      description => <<"API health check">>,
+      description => <<"API health check with build identity">>,
       tags        => [<<"Health">>],
       responses   => #{
         200 => #{
@@ -29,7 +29,11 @@ trails() ->
           content     => #{<<"application/json">> => #{schema => #{
             type       => object,
             properties => #{
-              status => #{type => string}
+              status => #{type => string},
+              service => #{type => string},
+              version => #{type => string},
+              git_sha => #{type => string},
+              built_at => #{type => string}
             }
           }}}
         }
@@ -46,7 +50,7 @@ trails() ->
 handle(Req, _Opts) ->
   case cowboy_req:method(Req) of
     <<"GET">> ->
-      handler_utils:send_json(Req, 200, #{status => <<"ok">>});
+      handler_utils:send_json(Req, 200, eventhub_build_info:info());
     _ ->
       handler_utils:send_error(Req, 405, <<"Method not allowed">>)
-  end.
\ No newline at end of file
+  end.
diff --git a/src/infra/eventhub_build_info.erl b/src/infra/eventhub_build_info.erl
new file mode 100644
index 0000000..221bac9
--- /dev/null
+++ b/src/infra/eventhub_build_info.erl
@@ -0,0 +1,29 @@
+-module(eventhub_build_info).
+-export([info/0, version/0, git_sha/0, built_at/0]).
+
+%% @doc Runtime build identity from env (baked at image build or set in compose).
+-spec info() -> map().
+info() ->
+  #{
+    status => <<"ok">>,
+    service => <<"eventhub">>,
+    version => version(),
+    git_sha => git_sha(),
+    built_at => built_at()
+  }.
+
+-spec version() -> binary().
+version() -> env("EVENTHUB_VERSION", <<"0.0">>).
+
+-spec git_sha() -> binary().
+git_sha() -> env("EVENTHUB_GIT_SHA", <<"unknown">>).
+
+-spec built_at() -> binary().
+built_at() -> env("EVENTHUB_BUILT_AT", <<"">>).
+
+env(Name, Default) ->
+  case os:getenv(Name) of
+    false -> Default;
+    [] -> Default;
+    Value -> unicode:characters_to_binary(Value)
+  end.