Moved tests to its own folders

Author: Relrin

packages/core/src/terminal/buffer.test.ts …ckages/core/test/terminal/buffer.test.tspackages/core/src/terminal/buffer.test.ts renamed to packages/core/test/terminal/buffer.test.ts packages/core/src/terminal/buffer.test.ts renamed to packages/core/test/terminal/buffer.test.ts

@@ -1,5 +1,5 @@
 import { describe, expect, test } from "bun:test";
-import { OutputRingBuffer } from "./buffer.js";
+import { OutputRingBuffer } from "../../src/terminal/buffer.js";
 
 describe("OutputRingBuffer", () => {
   test("snapshot returns appended output in order", () => {

packages/core/src/terminal/shells.test.ts …ckages/core/test/terminal/shells.test.tspackages/core/src/terminal/shells.test.ts renamed to packages/core/test/terminal/shells.test.ts packages/core/src/terminal/shells.test.ts renamed to packages/core/test/terminal/shells.test.ts

@@ -1,5 +1,5 @@
 import { describe, expect, test } from "bun:test";
-import { detectShells, resolveShell, type ShellDetectionDeps } from "./shells.js";
+import { detectShells, resolveShell, type ShellDetectionDeps } from "../../src/terminal/shells.js";
 
 function winDeps(overrides: Partial<ShellDetectionDeps> = {}): Partial<ShellDetectionDeps> {
   return {