feat: poblar scaffold inicial del shape rest-api/python

Reemplaza el placeholder mínimo previo por el scaffold canónico del
golden path rest-api/python (entry point para tier free-trial):

- code/app/main.py — FastAPI con /health (sin DB), /metrics, middleware
  correlation_id, settings Pydantic
- code/tests/ — pytest + httpx TestClient (sin testcontainers, sin Docker)
- helm/APP_NAME/ — chart minimal: Deployment, Service, IngressRoute,
  NetworkPolicy. SIN Job Alembic, SIN ServiceMonitor, SIN claim de BD
- coralware-shape.yaml — shapeVersion 1.0.0, minTier free-trial,
  promotionPath -> web-backend-python cuando se requiera persistencia
- .gitea/workflows/APP_NAME-build.yaml — invoca reusable workflow ADR-038
  + job helm-deploy con KUBECONFIG_TENANT_B64

Diferencias con web-backend/python: sin alembic, sin BD, sin
testcontainers, NetworkPolicy sin acceso a ns-addons.

Placeholders __APP_NAME__, __TIER__, __TENANT_ID__, __TENANT_ID_NODASHES__
serán sustituidos server-side por repo-provisioner.

El openspec/ del golden path NO se sincroniza al repo Gitea (gobernanza
interna de Coralware).

Refs: ADR-027 (Golden Paths), ADR-038 (CI), ADR-053 (referencia anatomía).

helm/APP_NAME/templates/deployment.yaml

@@ -0,0 +1,80 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ .Release.Name }}
+  labels:
+    {{- include "app.labels" . | nindent 4 }}
+spec:
+  replicas: {{ .Values.replicaCount }}
+  selector:
+    matchLabels:
+      {{- include "app.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      labels:
+        {{- include "app.labels" . | nindent 8 }}
+    spec:
+      serviceAccountName: {{ .Release.Name }}
+      imagePullSecrets:
+        - name: {{ .Values.image.pullSecret }}
+      securityContext:
+        runAsNonRoot: true
+        runAsUser: 1001
+        seccompProfile:
+          type: RuntimeDefault
+      containers:
+        - name: app
+          image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          ports:
+            - name: http
+              containerPort: 8000
+              protocol: TCP
+          envFrom:
+            - configMapRef:
+                name: {{ .Release.Name }}-config
+          livenessProbe:
+            httpGet:
+              path: /health
+              port: http
+            initialDelaySeconds: {{ .Values.probes.liveness.initialDelaySeconds }}
+            periodSeconds: {{ .Values.probes.liveness.periodSeconds }}
+          readinessProbe:
+            httpGet:
+              path: /health
+              port: http
+            initialDelaySeconds: {{ .Values.probes.readiness.initialDelaySeconds }}
+            periodSeconds: {{ .Values.probes.readiness.periodSeconds }}
+            failureThreshold: {{ .Values.probes.readiness.failureThreshold }}
+          resources:
+            {{- toYaml .Values.resources | nindent 12 }}
+          securityContext:
+            allowPrivilegeEscalation: false
+            readOnlyRootFilesystem: true
+            capabilities:
+              drop: ["ALL"]
+          volumeMounts:
+            - name: tmp
+              mountPath: /tmp
+      volumes:
+        - name: tmp
+          emptyDir: {}
+---
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ .Release.Name }}
+  labels:
+    {{- include "app.labels" . | nindent 4 }}
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ .Release.Name }}-config
+  labels:
+    {{- include "app.labels" . | nindent 4 }}
+data:
+  LOG_LEVEL: {{ .Values.config.logLevel | quote }}
+  CORRELATION_ID_HEADER: {{ .Values.config.correlationIdHeader | quote }}
+  OPENAPI_REQUIRE_AUTH: {{ .Values.config.openapiRequireAuth | quote }}
+  KEYCLOAK_ISSUER: {{ .Values.config.keycloakIssuer | quote }}