feat(KB-131): add mobile-safe task entry input with regression tests

- Apply 16px font size to mobile task entry inputs to prevent iOS auto-zoom
- Add regression tests for mobile input font sizing behavior
- Document mobile-safe task-entry requirements in dashboard README
- Update terminal service PTY loading logic

packages/dashboard/app/__tests__/mobile-input-font-size.test.ts

@@ -0,0 +1,64 @@
+import { describe, it, expect } from "vitest";
+import { readFileSync } from "fs";
+import { resolve } from "path";
+
+const css = readFileSync(
+  resolve(__dirname, "../styles.css"),
+  "utf-8",
+);
+
+describe("mobile input font size CSS", () => {
+  describe("base (desktop) styles", () => {
+    it("quick-entry-input has desktop font-size below 16px", () => {
+      // Extract the .quick-entry-input rule
+      const quickEntryMatch = css.match(/\.quick-entry-input\s*\{[^}]*\}/);
+      expect(quickEntryMatch).not.toBeNull();
+      
+      // Should have 13px font-size on desktop
+      expect(quickEntryMatch![0]).toContain("font-size: 13px");
+    });
+
+    it("form-group textarea has desktop font-size below 16px", () => {
+      // Extract the .form-group textarea rule
+      const textareaMatch = css.match(/\.form-group\s+textarea\s*\{[^}]*\}/);
+      expect(textareaMatch).not.toBeNull();
+      
+      // Should have 14px font-size on desktop
+      expect(textareaMatch![0]).toContain("font-size: 14px");
+    });
+  });
+
+  describe("mobile @media (max-width: 768px)", () => {
+    // Extract the main mobile media block for scoped assertions
+    const mediaStart = css.search(
+      /@media\s*\([^)]*max-width:\s*768px[^)]*\)\s*\{/,
+    );
+    const afterMedia = css.slice(mediaStart);
+
+    it("contains mobile font-size override for task-entry inputs", () => {
+      // Both .quick-entry-input and #new-task-description should be targeted
+      expect(afterMedia).toContain(".quick-entry-input,");
+      expect(afterMedia).toContain("#new-task-description");
+      expect(afterMedia).toContain("font-size: 16px");
+    });
+
+    it("task-entry font-size override is inside the mobile @media block", () => {
+      expect(mediaStart).toBeGreaterThanOrEqual(0);
+      
+      // Find the next @media after the main mobile one to scope our search
+      const nextMedia = afterMedia.search(/@media/);
+      const mobileBlock = nextMedia > 0 ? afterMedia.slice(0, nextMedia) : afterMedia;
+      
+      // The override should be in the first mobile block
+      expect(mobileBlock).toContain(".quick-entry-input");
+      expect(mobileBlock).toContain("font-size: 16px");
+    });
+
+    it("only targets task-entry inputs, not all inputs globally", () => {
+      // The selector should specifically target quick-entry and new-task-description
+      // not a global input selector that would affect all inputs
+      const globalInputPattern = /@media[^{]*max-width[^}]*\{[^}]*input\s*\{[^}]*font-size:\s*16px/s;
+      expect(css).not.toMatch(globalInputPattern);
+    });
+  });
+});