feat(discovery): queries, Signal and Ranking rework

.github/copilot-instructions.md

@@ -59,7 +59,7 @@ make docs-gen      # regenerate AI docs from source
 ```
 api/v1alpha1 — Package v1alpha1 contains API Schema definitions for the drop v1alpha1 API group.
 internal/controller — Package controller implements Kubernetes reconcilers for the drop CRDs (one per Kind).
-  imports: api/v1alpha1, internal/discovery, internal/metrics, internal/pacing, internal/podbuilder
+  imports: api/v1alpha1, internal/metrics, internal/pacing, internal/podbuilder
 internal/discovery — Package discovery implements image discovery from registries and Prometheus metrics.
   imports: api/v1alpha1
 internal/metrics — Package metrics registers Prometheus metrics for the drop operator.

.github/workflows/ci.yml

@@ -133,7 +133,7 @@ jobs:
           make controller-gen
           make sync-crds
           kubectl apply -f config/crd/bases/
-      - name: Deploy E2E infrastructure (Prometheus + Registry)
+      - name: Deploy E2E infrastructure (Prometheus, Loki, Registry)
         run: make e2e-infra
       - name: Deploy operator
         run: |

Makefile

@@ -103,7 +103,7 @@ uninstall: manifests kustomize ## Uninstall CRDs from cluster.
 	$(KUSTOMIZE) build config/crd | $(KUBECTL) delete --ignore-not-found -f -
 
 .PHONY: e2e-infra
-e2e-infra: ## Deploy Prometheus + Registry for E2E/dev.
+e2e-infra: ## Deploy Prometheus, Loki, and Registry for E2E/dev.
 	@chmod +x hack/e2e-infra/setup.sh && hack/e2e-infra/setup.sh
 
 ##@ Docker

Tiltfile

@@ -82,9 +82,11 @@ local('kubectl create namespace e2e-infra --dry-run=client -o yaml | kubectl app
 k8s_yaml('hack/e2e-infra/prometheus-config.yaml')
 k8s_yaml('hack/e2e-infra/prometheus.yaml')
 k8s_yaml('hack/e2e-infra/registry.yaml')
+k8s_yaml('hack/e2e-infra/loki.yaml')
 
 k8s_resource('prometheus', objects=['prometheus-config:configmap', 'prometheus:serviceaccount', 'prometheus-metrics-reader:clusterrolebinding'], port_forwards=['9090:9090'], labels=['infra'])
 k8s_resource('registry', port_forwards=['5000:5000'], labels=['infra'])
+k8s_resource('loki', objects=['loki-config:configmap'], port_forwards=['3100:3100'], labels=['infra'])
 
 # Configure kind nodes to reach the in-cluster registry.
 # Kubelet/containerd can't resolve cluster DNS, so we point them at the registry's ClusterIP.
@@ -99,6 +101,10 @@ local_resource(
 k8s_yaml('hack/e2e-infra/seed-registry-job.yaml')
 k8s_resource('seed-registry', labels=['infra'], resource_deps=['registry-mirror'])
 
+# Seed Loki with image-pull events
+k8s_yaml('hack/e2e-infra/seed-loki-job.yaml')
+k8s_resource('seed-loki', labels=['infra'], resource_deps=['loki'])
+
 # --- Grafana with Drop dashboard ---
 # Create dashboard ConfigMap from the shipped JSON, then apply grafana manifests.
 dashboard_json = str(read_file('charts/drop/dashboards/drop-operator.json'))