fix(template): parameterize scaffold with __PROJECT_NAME__/__MODULE_PATH__ (gitea-mcp#44)

template-go-web was seeded from the real `hostexecutor` project and never
parameterized: go.mod hardcoded `module gitea.d-ma.be/mathias/hostexecutor` and
`hostexecutor` appeared throughout (cmd dir, Dockerfile, Taskfile, CI, context
docs). create_project_from_template therefore substituted nothing and returned
a "no placeholders" partial_failure on the zero-config default path.

Replaced the full module path with __MODULE_PATH__ and the bare project name
with __PROJECT_NAME__ (incl. renaming cmd/hostexecutor → cmd/__PROJECT_NAME__),
matching the substitution the tool performs. Also drops the stale gitea.d-ma.be
host (the placeholder resolves to git.d-ma.be/<owner>/<name>).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

.gitea/workflows/cd.yml

@@ -8,7 +8,7 @@ on:
     branches: [main]
 
 env:
-  IMAGE: hostexecutor
+  IMAGE: __PROJECT_NAME__
 
 jobs:
   check:
@@ -81,16 +81,16 @@ jobs:
           rm -rf /tmp/infra
           git clone -b main ssh://git@10.0.1.20:30022/mathias/infra.git /tmp/infra
           cd /tmp/infra
-          DEPLOYMENT="k3s/apps/hostexecutor/deployment.yaml"
-          sed -i "s|image: localhost:5000/hostexecutor:.*|image: localhost:5000/hostexecutor:${IMAGE_TAG}|" "$DEPLOYMENT"
-          grep -q "localhost:5000/hostexecutor:${IMAGE_TAG}" "$DEPLOYMENT" \
+          DEPLOYMENT="k3s/apps/__PROJECT_NAME__/deployment.yaml"
+          sed -i "s|image: localhost:5000/__PROJECT_NAME__:.*|image: localhost:5000/__PROJECT_NAME__:${IMAGE_TAG}|" "$DEPLOYMENT"
+          grep -q "localhost:5000/__PROJECT_NAME__:${IMAGE_TAG}" "$DEPLOYMENT" \
             || { echo "✗ image tag patch failed"; exit 1; }
           if git diff --quiet "$DEPLOYMENT"; then
             echo "ℹ image tag unchanged — skipping push"
           else
-            git -c user.name="hostexecutor CI" \
-                -c user.email="ci@hostexecutor.local" \
-                commit -m "chore(deploy): hostexecutor → ${IMAGE_TAG}" "$DEPLOYMENT"
+            git -c user.name="__PROJECT_NAME__ CI" \
+                -c user.email="ci@__PROJECT_NAME__.local" \
+                commit -m "chore(deploy): __PROJECT_NAME__ → ${IMAGE_TAG}" "$DEPLOYMENT"
             git push origin main
             echo "✓ pushed to infra repo"
           fi
@@ -105,11 +105,11 @@ jobs:
 
       - name: Verify rollout
         run: |
-          kubectl rollout status deployment/hostexecutor \
-            --namespace hostexecutor \
+          kubectl rollout status deployment/__PROJECT_NAME__ \
+            --namespace __PROJECT_NAME__ \
             --timeout=120s \
           || {
-            kubectl get pods -n hostexecutor -o wide
-            kubectl get events -n hostexecutor --sort-by='.lastTimestamp' | tail -20
+            kubectl get pods -n __PROJECT_NAME__ -o wide
+            kubectl get events -n __PROJECT_NAME__ --sort-by='.lastTimestamp' | tail -20
             exit 1
           }