feat: Initialize Zastava Webhook service with TLS and Authority authentication

- Added Program.cs to set up the web application with Serilog for logging, health check endpoints, and a placeholder admission endpoint.
- Configured Kestrel server to use TLS 1.3 and handle client certificates appropriately.
- Created StellaOps.Zastava.Webhook.csproj with necessary dependencies including Serilog and Polly.
- Documented tasks in TASKS.md for the Zastava Webhook project, outlining current work and exit criteria for each task.

samples/scanner/images/alpine-busybox/README.md

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+# Alpine + BusyBox Sample
+
+Fixtures showcase the tiny Alpine image that powers many minimal containers. BusyBox and musl appear in usage because they back the entrypoint shell, while alpine-baselayout remains inventory-only.

samples/scanner/images/alpine-busybox/bom-index.json

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+{
+  "schema": "stellaops/bom-index@1",
+  "image": {
+    "repository": "docker.io/library/alpine",
+    "digest": "sha256:9a214327ec7df5bc8f1d3f12171873be7d778fdbf473d6f9a63d5de6c6bfb2d3",
+    "tag": "3.20"
+  },
+  "generatedAt": "2025-10-19T00:00:00Z",
+  "generator": "stellaops/scanner@10.0.0-preview1",
+  "components": [
+    {
+      "purl": "pkg:apk/alpine/busybox@1.36.1-r2?arch=x86_64",
+      "layerDigest": "sha256:5555555555555555555555555555555555555555555555555555555555555555",
+      "usage": ["inventory", "runtime"],
+      "licenses": ["GPL-2.0-only"],
+      "evidence": {
+        "kind": "apk-database",
+        "path": "/lib/apk/db/installed"
+      }
+    },
+    {
+      "purl": "pkg:apk/alpine/musl@1.2.5-r0?arch=x86_64",
+      "layerDigest": "sha256:6666666666666666666666666666666666666666666666666666666666666666",
+      "usage": ["inventory", "runtime"],
+      "licenses": ["MIT"],
+      "evidence": {
+        "kind": "apk-database",
+        "path": "/lib/apk/db/installed"
+      }
+    },
+    {
+      "purl": "pkg:apk/alpine/alpine-baselayout@3.4.3-r0?arch=x86_64",
+      "layerDigest": "sha256:7777777777777777777777777777777777777777777777777777777777777777",
+      "usage": ["inventory"],
+      "licenses": ["GPL-2.0-only"],
+      "evidence": {
+        "kind": "apk-database",
+        "path": "/lib/apk/db/installed"
+      }
+    }
+  ]
+}

samples/scanner/images/alpine-busybox/inventory.cdx.json

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+{
+  "bomFormat": "CycloneDX",
+  "specVersion": "1.5",
+  "version": 1,
+  "metadata": {
+    "timestamp": "2025-10-19T00:00:00Z",
+    "component": {
+      "type": "container",
+      "name": "alpine-busybox",
+      "version": "3.20",
+      "bomRef": "pkg:docker/library/alpine@sha256:9a214327ec7df5bc8f1d3f12171873be7d778fdbf473d6f9a63d5de6c6bfb2d3"
+    }
+  },
+  "components": [
+    {
+      "type": "application",
+      "bomRef": "pkg:apk/alpine/busybox@1.36.1-r2?arch=x86_64",
+      "name": "busybox",
+      "version": "1.36.1-r2"
+    },
+    {
+      "type": "library",
+      "bomRef": "pkg:apk/alpine/musl@1.2.5-r0?arch=x86_64",
+      "name": "musl",
+      "version": "1.2.5-r0"
+    },
+    {
+      "type": "application",
+      "bomRef": "pkg:apk/alpine/alpine-baselayout@3.4.3-r0?arch=x86_64",
+      "name": "alpine-baselayout",
+      "version": "3.4.3-r0"
+    }
+  ]
+}

samples/scanner/images/alpine-busybox/usage.cdx.json

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+{
+  "bomFormat": "CycloneDX",
+  "specVersion": "1.5",
+  "version": 1,
+  "metadata": {
+    "timestamp": "2025-10-19T00:00:00Z",
+    "component": {
+      "type": "container",
+      "name": "alpine-busybox",
+      "version": "3.20",
+      "bomRef": "pkg:docker/library/alpine@sha256:9a214327ec7df5bc8f1d3f12171873be7d778fdbf473d6f9a63d5de6c6bfb2d3"
+    }
+  },
+  "components": [
+    {
+      "type": "application",
+      "bomRef": "pkg:apk/alpine/busybox@1.36.1-r2?arch=x86_64",
+      "name": "busybox",
+      "version": "1.36.1-r2"
+    },
+    {
+      "type": "library",
+      "bomRef": "pkg:apk/alpine/musl@1.2.5-r0?arch=x86_64",
+      "name": "musl",
+      "version": "1.2.5-r0"
+    }
+  ]
+}