Move plugins to manifest, pin Docker version, add Makefile

- Add plugins.txt listing all plugins for reproducible installs
- Add Makefile with setup/start/stop/install-plugins targets
- Remove user/plugins/ from git tracking
- Pin Docker image to 1.7.49.5-ls244

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

plugins/form/templates/forms/fields/text/edit_list.html.twig

@@ -1,7 +0,0 @@
-{% set value = iterable ? value|join(', ') : value|string %}
-
-{% if link -%}
-    <a href="{{ link|e }}">{{ value|e }}</a>
-{%- else -%}
-    {{ value|e }}
-{%- endif %}

plugins/form/templates/forms/fields/text/text.html.twig

@@ -1,39 +0,0 @@
-{% if field.prepend or field.append or field.copy_to_clipboard %}
-    {% set field = field|merge({'wrapper_classes': 'form-input-addon-wrapper'}) %}
-{% endif %}
-
-{% extends "forms/field.html.twig" %}
-
-{% block prepend %}
-{% if field.prepend %}
-    <div class="form-input-addon form-input-prepend">
-        {{- field.prepend|t|raw -}}
-    </div>
-{% endif %}
-{% endblock %}
-
-{% block input_attributes %}
-    type="text"
-    {% if field.size %}size="{{ field.size }}"{% endif %}
-    {% if field.minlength is defined or field.validate.min is defined %}minlength="{{ field.minlength | default(field.validate.min) }}"{% endif %}
-    {% if field.maxlength is defined or field.validate.max is defined %}maxlength="{{ field.maxlength | default(field.validate.max) }}"{% endif %}
-    {{ parent() }}
-{% endblock %}
-
-{% block append %}
-    {% if field.copy_to_clipboard %}
-        <div class="form-input-addon form-input-append copy-to-clipboard">
-            {% if field.copy_to_clipboard in ['0', '1'] %}
-                <i class="fa fa-clipboard"></i>
-            {% else %}
-                {{- field.copy_to_clipboard|t|raw -}}
-            {% endif %}
-        </div>
-    {% elseif field.append %}
-        <div class="form-input-addon form-input-append">
-            {{- field.append|t|raw -}}
-        </div>
-    {% endif %}
-{% endblock %}
-
-