feat(KB-107): merge kb/kb-107

- feat(KB-107): complete Step 5 — add changeset for behavioral change
- test(KB-107): complete Step 4 — update tests to remove --no-open flag references
- feat(KB-107): complete Step 3 — remove --no-open from pi extension dashboard spawn
- feat(KB-107): complete Step 2 — simplify dashboard command, remove openBrowser function
- feat(KB-107): complete Step 1 — remove --no-open flag from CLI entry point

packages/cli/src/__tests__/build-exe.test.ts

@@ -89,7 +89,7 @@ describe("build-exe", () => {
     const port = 14040 + Math.floor(Math.random() * 1000);
     try {
       const output = await new Promise<string>((resolve, reject) => {
-        const child = spawn(binary, ["dashboard", "--no-open", "-p", String(port)], {
+        const child = spawn(binary, ["dashboard", "-p", String(port)], {
           cwd: dir,
           stdio: ["ignore", "pipe", "pipe"],
         });