feat: add VS Code Compose tasks for local full-stack testing

Adds Compose: Build & Up, Up, Down, Logs tasks for both Windows and Linux,
allowing the complete app to be tested locally via docker-compose on port 8080.
Updates README task table to reflect all available tasks.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.vscode/tasks.json

@@ -151,6 +151,150 @@
       "group": "build",
       "presentation": { "reveal": "always", "panel": "shared" },
       "problemMatcher": ["$tsc"]
+    },
+
+    // ── Compose: Build (local test image) ──────────────────────────────────────
+    {
+      "label": "Compose: Build (Windows)",
+      "type": "shell",
+      "windows": {
+        "command": "docker compose -f docker/docker-compose.yml build"
+      },
+      "group": "build",
+      "presentation": { "reveal": "always", "panel": "shared" },
+      "problemMatcher": []
+    },
+    {
+      "label": "Compose: Build (Linux)",
+      "type": "shell",
+      "linux": {
+        "command": "docker compose -f docker/docker-compose.yml build"
+      },
+      "group": "build",
+      "presentation": { "reveal": "always", "panel": "shared" },
+      "problemMatcher": []
+    },
+
+    // ── Compose: Up ────────────────────────────────────────────────────────────
+    {
+      "label": "Compose: Up (Windows)",
+      "type": "shell",
+      "windows": {
+        "command": "docker compose -f docker/docker-compose.yml up"
+      },
+      "group": "test",
+      "isBackground": true,
+      "presentation": { "reveal": "always", "panel": "dedicated" },
+      "problemMatcher": {
+        "pattern": { "regexp": ".", "file": 1, "line": 2, "message": 3 },
+        "background": {
+          "activeOnStart": true,
+          "beginsPattern": "Starting",
+          "endsPattern": "Archivum listening"
+        }
+      }
+    },
+    {
+      "label": "Compose: Up (Linux)",
+      "type": "shell",
+      "linux": {
+        "command": "docker compose -f docker/docker-compose.yml up"
+      },
+      "group": "test",
+      "isBackground": true,
+      "presentation": { "reveal": "always", "panel": "dedicated" },
+      "problemMatcher": {
+        "pattern": { "regexp": ".", "file": 1, "line": 2, "message": 3 },
+        "background": {
+          "activeOnStart": true,
+          "beginsPattern": "Starting",
+          "endsPattern": "Archivum listening"
+        }
+      }
+    },
+
+    // ── Compose: Down ──────────────────────────────────────────────────────────
+    {
+      "label": "Compose: Down (Windows)",
+      "type": "shell",
+      "windows": {
+        "command": "docker compose -f docker/docker-compose.yml down"
+      },
+      "group": "test",
+      "presentation": { "reveal": "always", "panel": "shared" },
+      "problemMatcher": []
+    },
+    {
+      "label": "Compose: Down (Linux)",
+      "type": "shell",
+      "linux": {
+        "command": "docker compose -f docker/docker-compose.yml down"
+      },
+      "group": "test",
+      "presentation": { "reveal": "always", "panel": "shared" },
+      "problemMatcher": []
+    },
+
+    // ── Compose: Build & Up (one-shot local test) ──────────────────────────────
+    {
+      "label": "Compose: Build & Up (Windows)",
+      "type": "shell",
+      "windows": {
+        "command": "docker compose -f docker/docker-compose.yml up --build"
+      },
+      "group": "test",
+      "isBackground": true,
+      "presentation": { "reveal": "always", "panel": "dedicated" },
+      "problemMatcher": {
+        "pattern": { "regexp": ".", "file": 1, "line": 2, "message": 3 },
+        "background": {
+          "activeOnStart": true,
+          "beginsPattern": "Building",
+          "endsPattern": "Archivum listening"
+        }
+      }
+    },
+    {
+      "label": "Compose: Build & Up (Linux)",
+      "type": "shell",
+      "linux": {
+        "command": "docker compose -f docker/docker-compose.yml up --build"
+      },
+      "group": "test",
+      "isBackground": true,
+      "presentation": { "reveal": "always", "panel": "dedicated" },
+      "problemMatcher": {
+        "pattern": { "regexp": ".", "file": 1, "line": 2, "message": 3 },
+        "background": {
+          "activeOnStart": true,
+          "beginsPattern": "Building",
+          "endsPattern": "Archivum listening"
+        }
+      }
+    },
+
+    // ── Compose: Logs ──────────────────────────────────────────────────────────
+    {
+      "label": "Compose: Logs (Windows)",
+      "type": "shell",
+      "windows": {
+        "command": "docker compose -f docker/docker-compose.yml logs -f"
+      },
+      "group": "test",
+      "isBackground": true,
+      "presentation": { "reveal": "always", "panel": "dedicated" },
+      "problemMatcher": []
+    },
+    {
+      "label": "Compose: Logs (Linux)",
+      "type": "shell",
+      "linux": {
+        "command": "docker compose -f docker/docker-compose.yml logs -f"
+      },
+      "group": "test",
+      "isBackground": true,
+      "presentation": { "reveal": "always", "panel": "dedicated" },
+      "problemMatcher": []
     }
 
   ]