style: apply oxfmt baseline formatting across all source files (#25)

## Summary
- Run `oxfmt .` across the entire codebase to establish formatted baseline
- 299 files changed — mechanical formatting only, no logic changes
- Double quotes, semicolons, 2-space indent, trailing commas, 100 print width

Part 3/4 of [VA-851](https://linear.app/heygen/issue/VA-851/pre-migration-configure-eslint-prettier-and-conventional-commits)

## Test plan
- [x] `pnpm format:check` — all 426 files pass
- [x] `pnpm -r typecheck` — all packages pass
- [x] `pnpm build` — all packages build
- [x] All 348 tests pass

packages/core/src/runtime/bridge.test.ts

@@ -86,18 +86,22 @@ describe("installRuntimeControlBridge", () => {
   it("ignores messages from wrong source", () => {
     const deps = createMockDeps();
     const handler = installRuntimeControlBridge(deps);
-    handler(new MessageEvent("message", {
-      data: { source: "other", type: "control", action: "play" },
-    }));
+    handler(
+      new MessageEvent("message", {
+        data: { source: "other", type: "control", action: "play" },
+      }),
+    );
     expect(deps.onPlay).not.toHaveBeenCalled();
   });
 
   it("ignores messages with wrong type", () => {
     const deps = createMockDeps();
     const handler = installRuntimeControlBridge(deps);
-    handler(new MessageEvent("message", {
-      data: { source: "hf-parent", type: "state", action: "play" },
-    }));
+    handler(
+      new MessageEvent("message", {
+        data: { source: "hf-parent", type: "state", action: "play" },
+      }),
+    );
     expect(deps.onPlay).not.toHaveBeenCalled();
   });
 
@@ -112,7 +116,7 @@ describe("installRuntimeControlBridge", () => {
     const deps = createMockDeps();
     const handler = installRuntimeControlBridge(deps);
     expect(() =>
-      handler(makeControlMessage("flash-elements", { selectors: [".test"], duration: 500 }))
+      handler(makeControlMessage("flash-elements", { selectors: [".test"], duration: 500 })),
     ).not.toThrow();
   });
 });