chore(chat): align streaming constants with type conventions

Author: waleedlatif1

apps/sim/app/workspace/[workspaceId]/home/components/message-content/components/chat-content/chat-content.tsx

@@ -68,7 +68,10 @@ const LANG_ALIASES: Record<string, string> = {
   py: 'python',
 }
 
-const MARKDOWN_REMARK_PLUGINS = [...Object.values(defaultRemarkPlugins), remarkPlainText]
+const MARKDOWN_REMARK_PLUGINS = [
+  ...Object.values(defaultRemarkPlugins),
+  remarkPlainText,
+] as const satisfies NonNullable<ComponentPropsWithoutRef<typeof Streamdown>['remarkPlugins']>
 
 const PROSE_CLASSES = cn(
   'prose prose-base dark:prose-invert max-w-none',

apps/sim/app/workspace/[workspaceId]/home/components/message-content/components/chat-content/highlighted-lines.test.tsx

@@ -33,11 +33,11 @@ describe('highlighted code lines', () => {
       '/* a comment\nwith <script>alert(1)</script>\n*/\nconst x = "safe"',
       '<div title="a &amp; b">\n  <!-- multi\n  line -->\n</div>',
       'const x = "<img src=x onerror=alert(1)>"\n\nconst y = 1',
-    ]
+    ] as const
     for (const code of cases) {
       for (let end = 1; end <= code.length; end++) {
         const prefix = code.slice(0, end)
-        for (const language of ['typescript', 'markup']) {
+        for (const language of ['typescript', 'markup'] as const) {
           const html = Prism.highlight(prefix, Prism.languages[language], language)
           const before = document.createElement('pre')
           before.innerHTML = html

apps/sim/app/workspace/[workspaceId]/home/components/message-content/components/chat-content/remark-plain-text.test.ts

@@ -16,7 +16,7 @@ describe('plain-paragraph parsing', () => {
       'A sentence with (parentheses), quotes, 1.23 and 20% off.',
       '12)word',
       'Plain\u000btext\u000ctext',
-    ]) {
+    ] as const) {
       for (let end = 0; end <= text.length; end++) {
         const prefix = text.slice(0, end)
         expect(optimized.parse(prefix), JSON.stringify(prefix)).toEqual(reference.parse(prefix))
@@ -42,7 +42,7 @@ describe('plain-paragraph parsing', () => {
       '[link][ref]\n\n[ref]: https://example.com',
       '```typescript\nconst text = `multiline\nvalue`\n```',
       '\ufeffText',
-    ]
+    ] as const
     for (const text of cases) {
       for (let end = 0; end <= text.length; end++) {
         const prefix = text.slice(0, end)
@@ -57,7 +57,7 @@ describe('plain-paragraph parsing', () => {
       '## Heading\n\nA paragraph.\n\n- A list item\n\n| Column |\n| --- |\n| Cell |\n\n'.repeat(30),
       `\`\`\`typescript\n${'const value = items.map((item) => item.value)\n'.repeat(40)}\`\`\``,
       'A citation. <source>{"url":"https://example.com"}</source>\n\n'.repeat(30),
-    ]
+    ] as const
     for (const text of cases) {
       for (let end = 7; end <= text.length; end += 7) {
         expect(optimized.parse(text.slice(0, end))).toEqual(reference.parse(text.slice(0, end)))