Initial commit: Gitea code search with MeiliSearch + MCP

Go indexer (full re-index + webhook), MeiliSearch integration,
MCP server exposing gitea_search tool for LLM agents.
K8s manifests for MeiliSearch + indexer CronJob.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

k8s/indexer-cronjob.yaml

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+apiVersion: v1
+kind: Secret
+metadata:
+  name: indexer-secret
+  namespace: gitea-search
+type: Opaque
+stringData:
+  gitea-token: "CHANGE-ME"
+  webhook-secret: "CHANGE-ME"
+---
+apiVersion: batch/v1
+kind: CronJob
+metadata:
+  name: gitea-indexer
+  namespace: gitea-search
+spec:
+  schedule: "0 */4 * * *"  # Every 4 hours
+  concurrencyPolicy: Forbid
+  successfulJobsHistoryLimit: 3
+  failedJobsHistoryLimit: 3
+  jobTemplate:
+    spec:
+      backoffLimit: 2
+      activeDeadlineSeconds: 1800  # 30 min timeout
+      template:
+        spec:
+          restartPolicy: OnFailure
+          containers:
+            - name: indexer
+              image: gitea.rspworks.tech/rpert/gitea-search:latest
+              command: ["indexer", "full"]
+              env:
+                - name: GITEA_URL
+                  value: "https://gitea.rspworks.tech"
+                - name: GITEA_TOKEN
+                  valueFrom:
+                    secretKeyRef:
+                      name: indexer-secret
+                      key: gitea-token
+                - name: MEILI_URL
+                  value: "http://meilisearch.gitea-search.svc.cluster.local:7700"
+                - name: MEILI_KEY
+                  valueFrom:
+                    secretKeyRef:
+                      name: meilisearch-secret
+                      key: master-key
+                - name: INDEX_NAME
+                  value: "gitea-code"
+              resources:
+                requests:
+                  cpu: 100m
+                  memory: 128Mi
+                limits:
+                  cpu: 500m
+                  memory: 512Mi
+---
+# Optional: webhook server deployment for real-time indexing
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: indexer-webhook
+  namespace: gitea-search
+  labels:
+    app: indexer-webhook
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: indexer-webhook
+  template:
+    metadata:
+      labels:
+        app: indexer-webhook
+    spec:
+      containers:
+        - name: webhook
+          image: gitea.rspworks.tech/rpert/gitea-search:latest
+          command: ["indexer", "webhook"]
+          ports:
+            - containerPort: 8080
+          env:
+            - name: GITEA_URL
+              value: "https://gitea.rspworks.tech"
+            - name: GITEA_TOKEN
+              valueFrom:
+                secretKeyRef:
+                  name: indexer-secret
+                  key: gitea-token
+            - name: MEILI_URL
+              value: "http://meilisearch.gitea-search.svc.cluster.local:7700"
+            - name: MEILI_KEY
+              valueFrom:
+                secretKeyRef:
+                  name: meilisearch-secret
+                  key: master-key
+            - name: INDEX_NAME
+              value: "gitea-code"
+            - name: WEBHOOK_SECRET
+              valueFrom:
+                secretKeyRef:
+                  name: indexer-secret
+                  key: webhook-secret
+          resources:
+            requests:
+              cpu: 50m
+              memory: 64Mi
+            limits:
+              cpu: 250m
+              memory: 256Mi
+          livenessProbe:
+            httpGet:
+              path: /healthz
+              port: 8080
+            periodSeconds: 30
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: indexer-webhook
+  namespace: gitea-search
+spec:
+  selector:
+    app: indexer-webhook
+  ports:
+    - port: 8080
+      targetPort: 8080

k8s/meilisearch.yaml

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+apiVersion: v1
+kind: PersistentVolumeClaim
+metadata:
+  name: meilisearch-data
+  namespace: gitea-search
+spec:
+  accessModes:
+    - ReadWriteOnce
+  storageClassName: local-path
+  resources:
+    requests:
+      storage: 2Gi
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: meilisearch
+  namespace: gitea-search
+  labels:
+    app: meilisearch
+spec:
+  replicas: 1
+  strategy:
+    type: Recreate
+  selector:
+    matchLabels:
+      app: meilisearch
+  template:
+    metadata:
+      labels:
+        app: meilisearch
+    spec:
+      containers:
+        - name: meilisearch
+          image: getmeili/meilisearch:v1.11
+          ports:
+            - containerPort: 7700
+          env:
+            - name: MEILI_ENV
+              value: production
+            - name: MEILI_MASTER_KEY
+              valueFrom:
+                secretKeyRef:
+                  name: meilisearch-secret
+                  key: master-key
+            - name: MEILI_DB_PATH
+              value: /meili_data/data.ms
+          volumeMounts:
+            - name: data
+              mountPath: /meili_data
+          resources:
+            requests:
+              cpu: 100m
+              memory: 256Mi
+            limits:
+              cpu: 500m
+              memory: 512Mi
+          livenessProbe:
+            httpGet:
+              path: /health
+              port: 7700
+            initialDelaySeconds: 10
+            periodSeconds: 30
+          readinessProbe:
+            httpGet:
+              path: /health
+              port: 7700
+            initialDelaySeconds: 5
+            periodSeconds: 10
+      volumes:
+        - name: data
+          persistentVolumeClaim:
+            claimName: meilisearch-data
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: meilisearch
+  namespace: gitea-search
+spec:
+  selector:
+    app: meilisearch
+  ports:
+    - port: 7700
+      targetPort: 7700
+---
+apiVersion: v1
+kind: Secret
+metadata:
+  name: meilisearch-secret
+  namespace: gitea-search
+type: Opaque
+stringData:
+  master-key: "CHANGE-ME-generate-with-openssl-rand-base64-32"

k8s/namespace.yaml

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+apiVersion: v1
+kind: Namespace
+metadata:
+  name: gitea-search