refactor(server): extract URL detection and color utils from index.js

No behavioral changes — 1:1 code move with imports replacing inline definitions.

server/index.js

@@ -11,25 +11,7 @@ const __dirname = dirname(__filename);
 
 const installMode = fs.existsSync(path.join(__dirname, '..', '.git')) ? 'git' : 'npm';
 
-// ANSI color codes for terminal output
-const colors = {
-    reset: '\x1b[0m',
-    bright: '\x1b[1m',
-    cyan: '\x1b[36m',
-    green: '\x1b[32m',
-    yellow: '\x1b[33m',
-    blue: '\x1b[34m',
-    dim: '\x1b[2m',
-};
-
-const c = {
-    info: (text) => `${colors.cyan}${text}${colors.reset}`,
-    ok: (text) => `${colors.green}${text}${colors.reset}`,
-    warn: (text) => `${colors.yellow}${text}${colors.reset}`,
-    tip: (text) => `${colors.blue}${text}${colors.reset}`,
-    bright: (text) => `${colors.bright}${text}${colors.reset}`,
-    dim: (text) => `${colors.dim}${text}${colors.reset}`,
-};
+import { c } from './utils/colors.js';
 
 console.log('SERVER_PORT from env:', process.env.SERVER_PORT);
 
@@ -226,68 +208,7 @@ const server = http.createServer(app);
 const ptySessionsMap = new Map();
 const PTY_SESSION_TIMEOUT = 30 * 60 * 1000;
 const SHELL_URL_PARSE_BUFFER_LIMIT = 32768;
-const ANSI_ESCAPE_SEQUENCE_REGEX = /\x1B(?:[@-Z\\-_]|\[[0-?]*[ -/]*[@-~]|\][^\x07]*(?:\x07|\x1B\\))/g;
-const TRAILING_URL_PUNCTUATION_REGEX = /[)\]}>.,;:!?]+$/;
-
-function stripAnsiSequences(value = '') {
-    return value.replace(ANSI_ESCAPE_SEQUENCE_REGEX, '');
-}
-
-function normalizeDetectedUrl(url) {
-    if (!url || typeof url !== 'string') return null;
-
-    const cleaned = url.trim().replace(TRAILING_URL_PUNCTUATION_REGEX, '');
-    if (!cleaned) return null;
-
-    try {
-        const parsed = new URL(cleaned);
-        if (parsed.protocol !== 'http:' && parsed.protocol !== 'https:') {
-            return null;
-        }
-        return parsed.toString();
-    } catch {
-        return null;
-    }
-}
-
-function extractUrlsFromText(value = '') {
-    const directMatches = value.match(/https?:\/\/[^\s<>"'`\\\x1b\x07]+/gi) || [];
-
-    // Handle wrapped terminal URLs split across lines by terminal width.
-    const wrappedMatches = [];
-    const continuationRegex = /^[A-Za-z0-9\-._~:/?#\[\]@!$&'()*+,;=%]+$/;
-    const lines = value.split(/\r?\n/);
-    for (let i = 0; i < lines.length; i++) {
-        const line = lines[i].trim();
-        const startMatch = line.match(/https?:\/\/[^\s<>"'`\\\x1b\x07]+/i);
-        if (!startMatch) continue;
-
-        let combined = startMatch[0];
-        let j = i + 1;
-        while (j < lines.length) {
-            const continuation = lines[j].trim();
-            if (!continuation) break;
-            if (!continuationRegex.test(continuation)) break;
-            combined += continuation;
-            j++;
-        }
-
-        wrappedMatches.push(combined.replace(/\r?\n\s*/g, ''));
-    }
-
-    return Array.from(new Set([...directMatches, ...wrappedMatches]));
-}
-
-function shouldAutoOpenUrlFromOutput(value = '') {
-    const normalized = value.toLowerCase();
-    return (
-        normalized.includes('browser didn\'t open') ||
-        normalized.includes('open this url') ||
-        normalized.includes('continue in your browser') ||
-        normalized.includes('press enter to open') ||
-        normalized.includes('open_url:')
-    );
-}
+import { stripAnsiSequences, normalizeDetectedUrl, extractUrlsFromText, shouldAutoOpenUrlFromOutput } from './utils/url-detection.js';
 
 // Single WebSocket server that handles both paths
 const wss = new WebSocketServer({

server/utils/colors.js

@@ -0,0 +1,21 @@
+// ANSI color codes for terminal output
+const colors = {
+    reset: '\x1b[0m',
+    bright: '\x1b[1m',
+    cyan: '\x1b[36m',
+    green: '\x1b[32m',
+    yellow: '\x1b[33m',
+    blue: '\x1b[34m',
+    dim: '\x1b[2m',
+};
+
+const c = {
+    info: (text) => `${colors.cyan}${text}${colors.reset}`,
+    ok: (text) => `${colors.green}${text}${colors.reset}`,
+    warn: (text) => `${colors.yellow}${text}${colors.reset}`,
+    tip: (text) => `${colors.blue}${text}${colors.reset}`,
+    bright: (text) => `${colors.bright}${text}${colors.reset}`,
+    dim: (text) => `${colors.dim}${text}${colors.reset}`,
+};
+
+export { colors, c };

server/utils/url-detection.js

@@ -0,0 +1,71 @@
+const ANSI_ESCAPE_SEQUENCE_REGEX = /\x1B(?:[@-Z\\-_]|\[[0-?]*[ -/]*[@-~]|\][^\x07]*(?:\x07|\x1B\\))/g;
+const TRAILING_URL_PUNCTUATION_REGEX = /[)\]}>.,;:!?]+$/;
+
+function stripAnsiSequences(value = '') {
+    return value.replace(ANSI_ESCAPE_SEQUENCE_REGEX, '');
+}
+
+function normalizeDetectedUrl(url) {
+    if (!url || typeof url !== 'string') return null;
+
+    const cleaned = url.trim().replace(TRAILING_URL_PUNCTUATION_REGEX, '');
+    if (!cleaned) return null;
+
+    try {
+        const parsed = new URL(cleaned);
+        if (parsed.protocol !== 'http:' && parsed.protocol !== 'https:') {
+            return null;
+        }
+        return parsed.toString();
+    } catch {
+        return null;
+    }
+}
+
+function extractUrlsFromText(value = '') {
+    const directMatches = value.match(/https?:\/\/[^\s<>"'`\\\x1b\x07]+/gi) || [];
+
+    // Handle wrapped terminal URLs split across lines by terminal width.
+    const wrappedMatches = [];
+    const continuationRegex = /^[A-Za-z0-9\-._~:/?#\[\]@!$&'()*+,;=%]+$/;
+    const lines = value.split(/\r?\n/);
+    for (let i = 0; i < lines.length; i++) {
+        const line = lines[i].trim();
+        const startMatch = line.match(/https?:\/\/[^\s<>"'`\\\x1b\x07]+/i);
+        if (!startMatch) continue;
+
+        let combined = startMatch[0];
+        let j = i + 1;
+        while (j < lines.length) {
+            const continuation = lines[j].trim();
+            if (!continuation) break;
+            if (!continuationRegex.test(continuation)) break;
+            combined += continuation;
+            j++;
+        }
+
+        wrappedMatches.push(combined.replace(/\r?\n\s*/g, ''));
+    }
+
+    return Array.from(new Set([...directMatches, ...wrappedMatches]));
+}
+
+function shouldAutoOpenUrlFromOutput(value = '') {
+    const normalized = value.toLowerCase();
+    return (
+        normalized.includes('browser didn\'t open') ||
+        normalized.includes('open this url') ||
+        normalized.includes('continue in your browser') ||
+        normalized.includes('press enter to open') ||
+        normalized.includes('open_url:')
+    );
+}
+
+export {
+    ANSI_ESCAPE_SEQUENCE_REGEX,
+    TRAILING_URL_PUNCTUATION_REGEX,
+    stripAnsiSequences,
+    normalizeDetectedUrl,
+    extractUrlsFromText,
+    shouldAutoOpenUrlFromOutput
+};