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/scanner/operations/analyzers-grafana-dashboard.json

@@ -0,0 +1,155 @@
+{
+  "title": "StellaOps Scanner Analyzer Benchmarks",
+  "uid": "scanner-analyzer-bench",
+  "schemaVersion": 38,
+  "version": 1,
+  "editable": true,
+  "timezone": "",
+  "graphTooltip": 0,
+  "time": {
+    "from": "now-24h",
+    "to": "now"
+  },
+  "templating": {
+    "list": [
+      {
+        "name": "datasource",
+        "type": "datasource",
+        "query": "prometheus",
+        "refresh": 1,
+        "hide": 0,
+        "current": {}
+      }
+    ]
+  },
+  "annotations": {
+    "list": []
+  },
+  "panels": [
+    {
+      "id": 1,
+      "title": "Max Duration (ms)",
+      "type": "timeseries",
+      "datasource": {
+        "type": "prometheus",
+        "uid": "${datasource}"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "unit": "ms",
+          "displayName": "{{scenario}}"
+        },
+        "overrides": []
+      },
+      "options": {
+        "legend": {
+          "displayMode": "table",
+          "placement": "bottom"
+        },
+        "tooltip": {
+          "mode": "single",
+          "sort": "none"
+        }
+      },
+      "targets": [
+        {
+          "expr": "scanner_analyzer_bench_max_ms",
+          "legendFormat": "{{scenario}}",
+          "refId": "A"
+        },
+        {
+          "expr": "scanner_analyzer_bench_baseline_max_ms",
+          "legendFormat": "{{scenario}} baseline",
+          "refId": "B"
+        }
+      ]
+    },
+    {
+      "id": 2,
+      "title": "Regression Ratio vs Limit",
+      "type": "timeseries",
+      "datasource": {
+        "type": "prometheus",
+        "uid": "${datasource}"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "unit": "percentunit",
+          "displayName": "{{scenario}}",
+          "min": 0,
+          "thresholds": {
+            "mode": "absolute",
+            "steps": [
+              {
+                "color": "green",
+                "value": null
+              },
+              {
+                "color": "red",
+                "value": 20
+              }
+            ]
+          }
+        },
+        "overrides": []
+      },
+      "options": {
+        "legend": {
+          "displayMode": "table",
+          "placement": "bottom"
+        },
+        "tooltip": {
+          "mode": "multi",
+          "sort": "none"
+        }
+      },
+      "targets": [
+        {
+          "expr": "(scanner_analyzer_bench_regression_ratio - 1) * 100",
+          "legendFormat": "{{scenario}} regression %",
+          "refId": "A"
+        },
+        {
+          "expr": "(scanner_analyzer_bench_regression_limit - 1) * 100",
+          "legendFormat": "{{scenario}} limit %",
+          "refId": "B"
+        }
+      ]
+    },
+    {
+      "id": 3,
+      "title": "Breached Scenarios",
+      "type": "stat",
+      "datasource": {
+        "type": "prometheus",
+        "uid": "${datasource}"
+      },
+      "fieldConfig": {
+        "defaults": {
+          "displayName": "{{scenario}}",
+          "unit": "short"
+        },
+        "overrides": []
+      },
+      "options": {
+        "colorMode": "value",
+        "graphMode": "area",
+        "justifyMode": "center",
+        "reduceOptions": {
+          "calcs": [
+            "last"
+          ],
+          "fields": "",
+          "values": false
+        }
+      },
+      "targets": [
+        {
+          "expr": "scanner_analyzer_bench_regression_breached",
+          "legendFormat": "{{scenario}}",
+          "refId": "A"
+        }
+      ]
+    }
+  ]
+}