feat: BuildKit client + integration test suite (651 tests)

BuildKitClient CLI wrapper for buildctl.
Docker compose stack (9 services) for integration testing.
Comprehensive test suite: wiremock tests for Matrix/La Suite/S3/client,
integration tests for Kratos/Hydra/Gitea/OpenSearch/Prometheus/Loki/
Grafana/LiveKit.

Bump: sunbeam-sdk v0.12.0

sunbeam-sdk/tests/config/identity.schema.json

@@ -0,0 +1,27 @@
+{
+  "$id": "https://schemas.sunbeam.pt/default.schema.json",
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "title": "Default identity",
+  "type": "object",
+  "properties": {
+    "traits": {
+      "type": "object",
+      "properties": {
+        "email": {
+          "type": "string",
+          "format": "email",
+          "title": "Email",
+          "ory.sh/kratos": {
+            "credentials": {
+              "password": { "identifier": true }
+            },
+            "recovery": { "via": "email" },
+            "verification": { "via": "email" }
+          }
+        }
+      },
+      "required": ["email"],
+      "additionalProperties": true
+    }
+  }
+}

sunbeam-sdk/tests/config/kratos.yml

@@ -0,0 +1,26 @@
+dsn: memory
+
+serve:
+  admin:
+    port: 4434
+    host: 0.0.0.0
+  public:
+    port: 4433
+    host: 0.0.0.0
+    base_url: http://localhost:4433/
+
+identity:
+  default_schema_id: default
+  schemas:
+    - id: default
+      url: file:///etc/config/kratos/identity.schema.json
+
+selfservice:
+  default_browser_return_url: http://localhost:4455/
+  flows:
+    registration:
+      enabled: true
+
+courier:
+  smtp:
+    connection_uri: smtp://localhost:1025/?disable_starttls=true

sunbeam-sdk/tests/config/livekit.yaml

@@ -0,0 +1,7 @@
+port: 7880
+bind_addresses:
+  - 0.0.0.0
+keys:
+  devkey: devsecret
+logging:
+  level: info

sunbeam-sdk/tests/config/loki.yml

@@ -0,0 +1,34 @@
+auth_enabled: false
+
+server:
+  http_listen_port: 3100
+
+common:
+  ring:
+    kvstore:
+      store: inmemory
+    replication_factor: 1
+    instance_addr: 127.0.0.1
+  path_prefix: /tmp/loki
+
+ingester:
+  lifecycler:
+    ring:
+      kvstore:
+        store: inmemory
+      replication_factor: 1
+    min_ready_duration: 0s
+
+schema_config:
+  configs:
+    - from: "2020-01-01"
+      store: tsdb
+      object_store: filesystem
+      schema: v13
+      index:
+        prefix: index_
+        period: 24h
+
+storage_config:
+  filesystem:
+    directory: /tmp/loki/chunks

sunbeam-sdk/tests/config/prometheus.yml

@@ -0,0 +1,8 @@
+global:
+  scrape_interval: 5s
+  evaluation_interval: 5s
+
+scrape_configs:
+  - job_name: prometheus
+    static_configs:
+      - targets: ['localhost:9090']