init devops repo

Mirrors cipherdolls/devops layout. Hostinger Swarm stacks for the t4t
hosted-gateway and local docker-compose for development + e2e tests.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

local/mock-ollama/Dockerfile

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+# Minimal mock Ollama HTTP server for E2E tests — returns a canned
+# `/api/chat`-shaped completion regardless of input. The t4t-provider treats
+# this as its inference backend; no GPU needed.
+FROM oven/bun:1.2-alpine
+WORKDIR /app
+COPY server.ts ./server.ts
+EXPOSE 11434
+CMD ["bun", "run", "server.ts"]

local/mock-ollama/server.ts

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+// Stub Ollama HTTP for E2E tests. Returns a deterministic completion so the
+// gateway -> provider -> claim flow can be asserted end-to-end without a GPU.
+//
+// Implements just enough of the Ollama HTTP surface to satisfy the
+// t4t-provider's inference call: GET /api/tags and POST /api/chat.
+
+const PORT = 11434;
+
+Bun.serve({
+  port: PORT,
+  hostname: '0.0.0.0',
+  async fetch(req: Request): Promise<Response> {
+    const url = new URL(req.url);
+    if (url.pathname === '/api/tags') {
+      return Response.json({
+        models: [
+          {
+            name: 'qwen2.5:0.5b',
+            modified_at: new Date().toISOString(),
+            size: 0,
+            digest: 'mock',
+            details: {
+              format: 'gguf',
+              family: 'qwen',
+              parameter_size: '0.5B',
+              quantization_level: 'Q4_0',
+            },
+          },
+        ],
+      });
+    }
+    if (url.pathname === '/api/chat' && req.method === 'POST') {
+      return Response.json({
+        model: 'qwen2.5:0.5b',
+        created_at: new Date().toISOString(),
+        message: { role: 'assistant', content: 'pong (mock-ollama)' },
+        done: true,
+        total_duration: 100_000_000,
+        prompt_eval_count: 10,
+        eval_count: 5,
+      });
+    }
+    return new Response('not implemented', { status: 404 });
+  },
+});
+
+console.log(`mock-ollama listening on :${PORT}`);