Initial commit — GCP Dot self-hosted clone

Server (FastAPI + SQLite) runs Stouffer Z network variance analysis.
Egg container uses os.urandom for hardware-entropy 200-bit trials.
Gitea Actions workflow auto-builds and publishes both Docker images.

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

.gitea/workflows/docker.yml

@@ -0,0 +1,81 @@
+name: Build & publish Docker images
+
+on:
+  push:
+    branches: [main]
+  release:
+    types: [published]
+
+env:
+  REGISTRY: git.hexadual.io
+
+jobs:
+  server:
+    name: Server image
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Log in to Gitea container registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY }}/rocobo/gcp-dot-server
+          tags: |
+            type=raw,value=latest,enable={{is_default_branch}}
+            type=semver,pattern={{version}}
+            type=sha,prefix=sha-,format=short
+
+      - name: Build and push server image
+        uses: docker/build-push-action@v5
+        with:
+          context: ./server
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}
+
+  egg:
+    name: Egg image
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Log in to Gitea container registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY }}/rocobo/gcp-dot-egg
+          tags: |
+            type=raw,value=latest,enable={{is_default_branch}}
+            type=semver,pattern={{version}}
+            type=sha,prefix=sha-,format=short
+
+      - name: Build and push egg image
+        uses: docker/build-push-action@v5
+        with:
+          context: ./egg
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}