fix: Simplify Kaniko templates for anonymous zot registry

Zot is configured without authentication, so remove the auth
configuration step from templates. Added --insecure flag for
internal registry access.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

internal/adapter/templates/templates/astro-landing/.woodpecker.yml

@@ -16,9 +16,6 @@ steps:
   docker:
     image: gcr.io/kaniko-project/executor:debug
     commands:
-      - |
-        mkdir -p /kaniko/.docker
-        echo "{\"auths\":{\"zot.orchard9.ai\":{\"username\":\"$ZOT_USER\",\"password\":\"$ZOT_PASSWORD\"}}}" > /kaniko/.docker/config.json
       - >
         /kaniko/executor
         --context .
@@ -26,11 +23,7 @@ steps:
         --destination zot.orchard9.ai/{{PROJECT_NAME}}:latest
         --destination zot.orchard9.ai/{{PROJECT_NAME}}:${CI_COMMIT_SHA:0:8}
         --cache=true
-    environment:
-      ZOT_USER:
-        from_secret: zot_user
-      ZOT_PASSWORD:
-        from_secret: zot_password
+        --insecure
     when:
       - event: push
         branch: main

internal/adapter/templates/templates/default/.woodpecker.yml

@@ -2,9 +2,6 @@ steps:
   docker:
     image: gcr.io/kaniko-project/executor:debug
     commands:
-      - |
-        mkdir -p /kaniko/.docker
-        echo "{\"auths\":{\"zot.orchard9.ai\":{\"username\":\"$ZOT_USER\",\"password\":\"$ZOT_PASSWORD\"}}}" > /kaniko/.docker/config.json
       - >
         /kaniko/executor
         --context .
@@ -12,11 +9,7 @@ steps:
         --destination zot.orchard9.ai/{{PROJECT_NAME}}:latest
         --destination zot.orchard9.ai/{{PROJECT_NAME}}:${CI_COMMIT_SHA:0:8}
         --cache=true
-    environment:
-      ZOT_USER:
-        from_secret: zot_user
-      ZOT_PASSWORD:
-        from_secret: zot_password
+        --insecure
     when:
       - event: push
         branch: main

internal/adapter/templates/templates/go-api/.woodpecker.yml

@@ -16,9 +16,6 @@ steps:
   docker:
     image: gcr.io/kaniko-project/executor:debug
     commands:
-      - |
-        mkdir -p /kaniko/.docker
-        echo "{\"auths\":{\"zot.orchard9.ai\":{\"username\":\"$ZOT_USER\",\"password\":\"$ZOT_PASSWORD\"}}}" > /kaniko/.docker/config.json
       - >
         /kaniko/executor
         --context .
@@ -26,11 +23,7 @@ steps:
         --destination zot.orchard9.ai/{{PROJECT_NAME}}:latest
         --destination zot.orchard9.ai/{{PROJECT_NAME}}:${CI_COMMIT_SHA:0:8}
         --cache=true
-    environment:
-      ZOT_USER:
-        from_secret: zot_user
-      ZOT_PASSWORD:
-        from_secret: zot_password
+        --insecure
     when:
       - event: push
         branch: main