docs(stack-proxy): modelo Docker Swarm funcional com Caddy

- landing test.octal.tec.br deployment completo
- modelo extraido do stack git funcional: labels caddy + rede public + restart
- runbook DOCKER-SWARM-RUNBOOK.md com 8 stacks e cheat sheet
- docker-state.json: snapshot completo 8 stacks 22 containers
- DOCKER-CHECKLIST.md: auto-check pre/post swap
- SESSION-CHECKLIST.md: checklist por sessão
- learned: Caddy precisa restart completo + coleta letra new certificados, erro783

state/docker-state.json

@@ -0,0 +1,58 @@
+{
+  "lastUpdated": "2026-05-20T11:55:00-03:00",
+  "generatedBy": "Pulse Agent — auto-administracao Docker",
+  "swarm": {
+    "nodeID": "x3fm004yzn3j7pvhz0fuuskez",
+    "hostname": "s1",
+    "role": "manager-leader",
+    "engine": "29.4.3",
+    "clusterID": "plz2xbh64yzhgy88jb9stm0pc"
+  },
+  "stacks": {
+    "bot": {
+      "services": ["beebot"],
+      "status": "stable",
+      "runningContainers": 2,
+      "note": "1 Running / 1 Failed(exit137)"
+    },
+    "code": {
+      "services": ["file"],
+      "status": "stable",
+      "runningContainers": 1
+    },
+    "database": {
+      "services": ["mongos-master", "dbadmin"],
+      "status": "warning",
+      "runningContainers": 2,
+      "note": "mongos-master com replicas Failed + 1 UP"
+    },
+    "design": {
+      "services": ["penpot", "postgres", "valkey", "backend", "frontend", "mcp", "exporter", "mailcatcher"],
+      "status": "stable",
+      "runningContainers": 7
+    },
+    "dock": {
+      "services": ["portainer", "agent"],
+      "status": "warning",
+      "runningContainers": 2,
+      "note": "portainer com multiplas replicas Failed antigas"
+    },
+    "git": {
+      "services": ["gitea"],
+      "status": "stable",
+      "runningContainers": 1,
+      "note": "sem health check definido"
+    },
+    "pro": {
+      "services": ["leantime", "leantime-db"],
+      "status": "warning",
+      "runningContainers": 2,
+      "note": "leantime com 3 containers Failed(exit137, unhealthy)"
+    },
+    "proxy": {
+      "services": ["caddy"],
+      "status": "stable",
+      "runningContainers": 1
+    }
+  }
+}