docs: visual guides with platform screenshots (Gitea, ArgoCD, Grafana, Prometheus)

infrastructure/test-contour/screenshots/README.md

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+# Platform screenshots (test contour)
+
+Автоматически сгенерировано `./scripts/capture-platform-screenshots/run.sh`.
+
+| File | Title |
+|------|-------|
+| 01-gitea-login.png | Gitea: страница входа |
+| 02-gitea-org-sova.png | Gitea: организация sova |
+| 03-gitea-backend-actions.png | Gitea Actions |
+| 04-gitea-action-run.png | Pipeline run |
+| 05-gitea-backend-tags.png | Теги backend |
+| 06-gitea-backend-packages.png | Container Registry |
+| 07-argocd-login.png | ArgoCD login |
+| 08-argocd-applications.png | Applications list |
+| 09-argocd-backend-test.png | backend-test |
+| 10-argocd-sova-root.png | sova-root |
+| 11-argocd-data-test.png | data-test |
+| 12-grafana-login.png | Grafana login |
+| 13-grafana-home.png | Grafana home |
+| 14-grafana-loki-explore.png | Loki Explore |
+| 15-prometheus-graph.png | Prometheus Graph |
+| 16-prometheus-targets.png | Prometheus Targets |
+| 17-prometheus-up-query.png | PromQL up |
+
+Полный manifest: `manifest.json`

infrastructure/test-contour/screenshots/manifest.json

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+{
+  "capturedAt": "2026-05-28T09:37:54.363Z",
+  "vmIp": "192.168.252.2",
+  "items": [
+    {
+      "file": "01-gitea-login.png",
+      "title": "Gitea: страница входа",
+      "notes": ""
+    },
+    {
+      "file": "02-gitea-org-sova.png",
+      "title": "Gitea: организация sova и репозитории",
+      "notes": ""
+    },
+    {
+      "file": "03-gitea-backend-actions.png",
+      "title": "Gitea Actions: workflow backend",
+      "notes": ""
+    },
+    {
+      "file": "04-gitea-action-run.png",
+      "title": "Gitea Actions: прогон pipeline (jobs)",
+      "notes": ""
+    },
+    {
+      "file": "05-gitea-backend-tags.png",
+      "title": "Gitea: теги релиза backend-v*",
+      "notes": ""
+    },
+    {
+      "file": "06-gitea-backend-packages.png",
+      "title": "Gitea: Container Registry (образы)",
+      "notes": ""
+    },
+    {
+      "file": "07-argocd-login.png",
+      "title": "ArgoCD: вход",
+      "notes": ""
+    },
+    {
+      "file": "08-argocd-applications.png",
+      "title": "ArgoCD: список Applications",
+      "notes": ""
+    },
+    {
+      "file": "09-argocd-backend-test.png",
+      "title": "ArgoCD: backend-test (ресурсы и sync)",
+      "notes": ""
+    },
+    {
+      "file": "10-argocd-sova-root.png",
+      "title": "ArgoCD: sova-root (app-of-apps, без pod URL)",
+      "notes": ""
+    },
+    {
+      "file": "11-argocd-data-test.png",
+      "title": "ArgoCD: data-test (PostgreSQL/MySQL/Redis)",
+      "notes": ""
+    },
+    {
+      "file": "12-grafana-login.png",
+      "title": "Grafana: вход",
+      "notes": ""
+    },
+    {
+      "file": "13-grafana-home.png",
+      "title": "Grafana: главная / дашборды",
+      "notes": ""
+    },
+    {
+      "file": "14-grafana-loki-explore.png",
+      "title": "Grafana Explore: логи Loki (namespace sova-test)",
+      "notes": ""
+    },
+    {
+      "file": "15-prometheus-graph.png",
+      "title": "Prometheus: Graph / PromQL",
+      "notes": ""
+    },
+    {
+      "file": "16-prometheus-targets.png",
+      "title": "Prometheus: Status → Targets",
+      "notes": ""
+    },
+    {
+      "file": "17-prometheus-up-query.png",
+      "title": "Prometheus: запрос up (живые targets)",
+      "notes": ""
+    }
+  ]
+}