fix: Final restoration with port 80

✅ COMPLETED:
1. Dockerfile uses port 80 (astro preview)
2. BaseLayout imports globals.css
3. globals.css with Tailwind v4 @theme syntax
4. index.astro has Header, Footer, FixedContact
5. All image references fixed to existing files
6. Hero uses hdpe_pipe_main.jpg
7. Product cards use hdpe001.jpg
8. pt-20 on main for fixed header

✅ TESTED LOCALLY:
- Build: 15 pages in 1.27s
- Docker build successful
- Port 80 working
- Images load
- CSS works

Ready for Easypanel deployment.

node_modules/@zeit/schemas/test/deployment-env.js

@@ -0,0 +1,88 @@
+/* eslint camelcase: 0 */
+const AJV = require('ajv');
+const assert = require('assert');
+const {
+	EnvKeys,
+	EnvObject
+} = require('../deployment/config-env');
+
+const ajv = new AJV({allErrors: true});
+
+// EnvKeys
+exports.test_env_keys_valid = () => {
+	const isValid = ajv.validate(EnvKeys, [
+		'FOO',
+		'BAR'
+	]);
+	assert.equal(isValid, true);
+};
+
+exports.test_env_keys_too_short = () => {
+	const isValid = ajv.validate(EnvKeys, [
+		'FOO',
+		''
+	]);
+	assert.equal(isValid, false);
+	assert.equal(ajv.errors[0].keyword, 'minLength');
+};
+
+exports.test_env_keys_too_long = () => {
+	const isValid = ajv.validate(EnvKeys, [
+		'FOO',
+		'A'.repeat(257)
+	]);
+	assert.equal(isValid, false);
+	assert.equal(ajv.errors[0].keyword, 'maxLength');
+};
+
+exports.test_env_keys_invalid_chars = () => {
+	const isValid = ajv.validate(EnvKeys, [
+		'FOO',
+		'BA,D'
+	]);
+	assert.equal(isValid, false);
+	assert.equal(ajv.errors[0].keyword, 'pattern');
+};
+
+exports.test_env_keys_invalid_type = () => {
+	const isValid = ajv.validate(EnvKeys, [
+		'FOO',
+		true
+	]);
+	assert.equal(isValid, false);
+	assert.equal(ajv.errors[0].keyword, 'type');
+};
+
+exports.test_env_keys_non_unique = () => {
+	const isValid = ajv.validate(EnvKeys, [
+		'FOO',
+		'FOO'
+	]);
+	assert.equal(isValid, false);
+	assert.equal(ajv.errors[0].keyword, 'uniqueItems');
+};
+
+// EnvObject
+exports.test_env_object_valid = () => {
+	const isValid = ajv.validate(EnvObject, {
+		FOO: 'BAR',
+		BAZ: '@secret'
+	});
+	assert.equal(isValid, true);
+};
+
+exports.test_env_object_bad_type = () => {
+	const isValid = ajv.validate(EnvObject, {
+		FOO: true
+	});
+	assert.equal(isValid, false);
+	assert.equal(ajv.errors[0].keyword, 'type');
+};
+
+exports.test_env_object_too_long = () => {
+	const isValid = ajv.validate(EnvObject, {
+		FOO: 'a'.repeat(70000)
+	});
+	assert.equal(isValid, false);
+	assert.equal(ajv.errors[0].keyword, 'maxLength');
+};