Clean up on_Crawl hooks: remove duplicates and standardize naming

Deleted dead/duplicate hooks:
- wget/on_Crawl__10_install_wget.py (duplicate of __10_wget_validate_config.py)
- chrome/on_Crawl__00_chrome_install.py (simpler version, kept full one)
- chrome/on_Crawl__20_chrome_launch.bg.js (legacy, kept __30 version)
- singlefile/on_Crawl__20_install_singlefile_extension.js (disabled/dead)
- istilldontcareaboutcookies/on_Crawl__20_install_*.js (legacy)
- ublock/on_Crawl__03_ublock.js (legacy, kept __20 version)
- Entire captcha2/ plugin (legacy version of twocaptcha/)

Renamed hooks to follow consistent pattern: on_Crawl__XX_<plugin>_<action>.<ext>
Priority bands:
  00-09: Binary/extension installation
  10-19: Config validation
  20-29: Browser launch and post-launch config

Final hooks:
  00 ripgrep_install.py, 01 chrome_install.py
  02 istilldontcareaboutcookies_install.js
  03 ublock_install.js, 04 singlefile_install.js
  05 twocaptcha_install.js
  10 chrome_validate.py, 11 wget_validate.py
  20 chrome_launch.bg.js, 25 twocaptcha_config.js

archivebox/plugins/ublock/on_Crawl__03_ublock.js

@@ -1,116 +0,0 @@
-#!/usr/bin/env node
-/**
- * uBlock Origin Extension Plugin
- *
- * Installs and configures the uBlock Origin Chrome extension for ad blocking
- * and privacy protection during page archiving.
- *
- * Extension: https://chromewebstore.google.com/detail/cjpalhdlnbpafiamejdnhcphjbkeiagm
- *
- * Priority: 03 (early) - Must install before Chrome session starts at Crawl level
- * Hook: on_Crawl (runs once per crawl, not per snapshot)
- *
- * This extension automatically:
- * - Blocks ads, trackers, and malware domains
- * - Reduces page load time and bandwidth usage
- * - Improves privacy during archiving
- * - Removes clutter from archived pages
- * - Uses efficient blocking with filter lists
- */
-
-const path = require('path');
-const fs = require('fs');
-
-// Import extension utilities
-const extensionUtils = require('../chrome/chrome_utils.js');
-
-// Extension metadata
-const EXTENSION = {
-    webstore_id: 'cjpalhdlnbpafiamejdnhcphjbkeiagm',
-    name: 'ublock',
-};
-
-// Get extensions directory from environment or use default
-const EXTENSIONS_DIR = process.env.CHROME_EXTENSIONS_DIR ||
-    path.join(process.env.DATA_DIR || './data', 'personas', process.env.ACTIVE_PERSONA || 'Default', 'chrome_extensions');
-
-/**
- * Install the uBlock Origin extension
- */
-async function installUblockExtension() {
-    console.log('[*] Installing uBlock Origin extension...');
-
-    // Install the extension
-    const extension = await extensionUtils.loadOrInstallExtension(EXTENSION, EXTENSIONS_DIR);
-
-    if (!extension) {
-        console.error('[❌] Failed to install uBlock Origin extension');
-        return null;
-    }
-
-    console.log('[+] uBlock Origin extension installed');
-    console.log('[+] Ads and trackers will be blocked during archiving');
-
-    return extension;
-}
-
-/**
- * Note: uBlock Origin works automatically with default filter lists.
- * No configuration needed - blocks ads, trackers, and malware domains out of the box.
- */
-
-/**
- * Main entry point - install extension before archiving
- */
-async function main() {
-    // Check if extension is already cached
-    const cacheFile = path.join(EXTENSIONS_DIR, 'ublock.extension.json');
-
-    if (fs.existsSync(cacheFile)) {
-        try {
-            const cached = JSON.parse(fs.readFileSync(cacheFile, 'utf-8'));
-            const manifestPath = path.join(cached.unpacked_path, 'manifest.json');
-
-            if (fs.existsSync(manifestPath)) {
-                console.log('[*] uBlock Origin extension already installed (using cache)');
-                return cached;
-            }
-        } catch (e) {
-            // Cache file corrupted, re-install
-            console.warn('[⚠️] Extension cache corrupted, re-installing...');
-        }
-    }
-
-    // Install extension
-    const extension = await installUblockExtension();
-
-    // Export extension metadata for chrome plugin to load
-    if (extension) {
-        // Write extension info to a cache file that chrome plugin can read
-        await fs.promises.mkdir(EXTENSIONS_DIR, { recursive: true });
-        await fs.promises.writeFile(
-            cacheFile,
-            JSON.stringify(extension, null, 2)
-        );
-        console.log(`[+] Extension metadata written to ${cacheFile}`);
-    }
-
-    return extension;
-}
-
-// Export functions for use by other plugins
-module.exports = {
-    EXTENSION,
-    installUblockExtension,
-};
-
-// Run if executed directly
-if (require.main === module) {
-    main().then(() => {
-        console.log('[✓] uBlock Origin extension setup complete');
-        process.exit(0);
-    }).catch(err => {
-        console.error('[❌] uBlock Origin extension setup failed:', err);
-        process.exit(1);
-    });
-}