Add Dynamic Poll Web Part with core functionality and styling

- Initialize Gulp build process with gulpfile.js
- Create package.json for project dependencies and scripts
- Add TypeScript declarations for SCSS modules
- Implement DynamicPollWebPart with property pane configuration
- Create PollDataService for SharePoint list interactions
- Develop core polling logic in PollCore.ts
- Define types for polls and answers in PollTypes.ts
- Create React components for DynamicPoll UI
- Add localization support for English and German
- Implement unit tests for core polling functionality
- Set up TypeScript and TSLint configurations

tests/validate-project.js

@@ -0,0 +1,32 @@
+'use strict';
+var fs = require('fs');
+var path = require('path');
+var root = path.resolve(__dirname, '..');
+var passed = 0;
+function read(file) { return fs.readFileSync(path.join(root, file), 'utf8'); }
+function json(file) { return JSON.parse(read(file)); }
+function assert(condition, message) { if (!condition) { throw new Error(message); } passed++; }
+
+var packageJson = json('package.json');
+var solution = json('config/package-solution.json').solution;
+var manifest = json('src/webparts/dynamicPoll/DynamicPollWebPart.manifest.json');
+var webPart = read('src/webparts/dynamicPoll/DynamicPollWebPart.ts');
+var service = read('src/webparts/dynamicPoll/PollDataService.ts');
+var component = read('src/webparts/dynamicPoll/components/DynamicPoll.tsx');
+var styles = read('src/webparts/dynamicPoll/components/DynamicPoll.module.scss');
+
+assert(packageJson.version === '1.0.0' && solution.version === '1.0.0.0', 'Version mismatch.');
+assert(solution.includeClientSideAssets === true && solution.skipFeatureDeployment === true, 'Central deployment missing.');
+assert(manifest.componentType === 'WebPart', 'Component is not a web part.');
+assert(webPart.indexOf("PropertyPaneDropdown('pollListId'") >= 0 && webPart.indexOf("PropertyPaneDropdown('answerListId'") >= 0,
+  'List selection is missing.');
+assert(service.indexOf("'PollId': pollId") >= 0 && service.indexOf("'Answer': answer") >= 0, 'Vote persistence is missing.');
+assert(service.indexOf("new Error('ALREADY_VOTED')") >= 0, 'Duplicate vote protection is missing.');
+assert(service.indexOf("new Error('POLL_NOT_ACTIVE')") >= 0, 'Active poll and answer validation is missing.');
+assert(component.indexOf("type='radio'") >= 0 && component.indexOf("role='progressbar'") >= 0,
+  'Accessible voting or results UI is missing.');
+assert(fs.existsSync(path.join(root, 'deployment/Initialize-DynamicPollLists.ps1')), 'Provisioning script is missing.');
+['neutralPrimary', 'neutralLight', 'themePrimary', 'themeDark', 'white'].forEach(function (slot) {
+  assert(styles.indexOf('[theme: ' + slot + ', default:') >= 0, 'Theme slot missing: ' + slot);
+});
+console.log('DynamicPoll project validation passed:', passed);