feat(docs): Add comprehensive documentation for Vexer, Vulnerability Explorer, and Zastava modules

- Introduced AGENTS.md, README.md, TASKS.md, and implementation_plan.md for Vexer, detailing mission, responsibilities, key components, and operational notes.
- Established similar documentation structure for Vulnerability Explorer and Zastava modules, including their respective workflows, integrations, and observability notes.
- Created risk scoring profiles documentation outlining the core workflow, factor model, governance, and deliverables.
- Ensured all modules adhere to the Aggregation-Only Contract and maintain determinism and provenance in outputs.

docs/modules/authority/operations/grafana-dashboard.json

@@ -0,0 +1,174 @@
+{
+  "title": "StellaOps Authority - Token & Access Monitoring",
+  "uid": "authority-token-monitoring",
+  "schemaVersion": 38,
+  "version": 1,
+  "editable": true,
+  "timezone": "",
+  "graphTooltip": 0,
+  "time": {
+    "from": "now-6h",
+    "to": "now"
+  },
+  "templating": {
+    "list": [
+      {
+        "name": "datasource",
+        "type": "datasource",
+        "query": "prometheus",
+        "refresh": 1,
+        "hide": 0,
+        "current": {}
+      }
+    ]
+  },
+  "panels": [
+    {
+      "id": 1,
+      "title": "Token Requests – Success vs Failure",
+      "type": "timeseries",
+      "datasource": {
+        "type": "prometheus",
+        "uid": "${datasource}"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "unit": "req/s",
+          "displayName": "{{grant_type}} ({{status}})"
+        },
+        "overrides": []
+      },
+      "targets": [
+        {
+          "refId": "A",
+          "expr": "sum by (grant_type, status) (rate(http_server_duration_seconds_count{service_name=\"stellaops-authority\", http_route=\"/token\"}[5m]))",
+          "legendFormat": "{{grant_type}} {{status}}"
+        }
+      ],
+      "options": {
+        "legend": {
+          "displayMode": "table",
+          "placement": "bottom"
+        },
+        "tooltip": {
+          "mode": "multi"
+        }
+      }
+    },
+    {
+      "id": 2,
+      "title": "Rate Limiter Rejections",
+      "type": "timeseries",
+      "datasource": {
+        "type": "prometheus",
+        "uid": "${datasource}"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "unit": "req/s",
+          "displayName": "{{limiter}}"
+        },
+        "overrides": []
+      },
+      "targets": [
+        {
+          "refId": "A",
+          "expr": "sum by (limiter) (rate(aspnetcore_rate_limiting_rejections_total{service_name=\"stellaops-authority\"}[5m]))",
+          "legendFormat": "{{limiter}}"
+        }
+      ]
+    },
+    {
+      "id": 3,
+      "title": "Bypass Events (5m)",
+      "type": "stat",
+      "datasource": {
+        "type": "prometheus",
+        "uid": "${datasource}"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "unit": "short",
+          "color": {
+            "mode": "thresholds"
+          },
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              { "color": "green", "value": null },
+              { "color": "orange", "value": 1 },
+              { "color": "red", "value": 5 }
+            ]
+          }
+        },
+        "overrides": []
+      },
+      "targets": [
+        {
+          "refId": "A",
+          "expr": "sum(rate(log_messages_total{message_template=\"Granting StellaOps bypass for remote {RemoteIp}; required scopes {RequiredScopes}.\"}[5m]))"
+        }
+      ],
+      "options": {
+        "reduceOptions": {
+          "calcs": ["last"],
+          "fields": "",
+          "values": false
+        },
+        "orientation": "horizontal",
+        "textMode": "auto"
+      }
+    },
+    {
+      "id": 4,
+      "title": "Lockout Events (15m)",
+      "type": "stat",
+      "datasource": {
+        "type": "prometheus",
+        "uid": "${datasource}"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "unit": "short",
+          "color": {
+            "mode": "thresholds"
+          },
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              { "color": "green", "value": null },
+              { "color": "orange", "value": 5 },
+              { "color": "red", "value": 10 }
+            ]
+          }
+        },
+        "overrides": []
+      },
+      "targets": [
+        {
+          "refId": "A",
+          "expr": "sum(rate(log_messages_total{message_template=\"Plugin {PluginName} denied access for {Username} due to lockout (retry after {RetryAfter}).\"}[15m]))"
+        }
+      ],
+      "options": {
+        "reduceOptions": {
+          "calcs": ["last"],
+          "fields": "",
+          "values": false
+        },
+        "orientation": "horizontal",
+        "textMode": "auto"
+      }
+    },
+    {
+      "id": 5,
+      "title": "Trace Explorer Shortcut",
+      "type": "text",
+      "options": {
+        "mode": "markdown",
+        "content": "[Open Trace Explorer](#/explore?left={\"datasource\":\"tempo\",\"queries\":[{\"query\":\"{service.name=\\\"stellaops-authority\\\", span_name=~\\\"authority.token.*\\\"}\",\"refId\":\"A\"}]})"
+      }
+    }
+  ],
+  "links": []
+}