feat(cli): add SQLite cache, shared solution runner, and submit command

apps/cli/test.ts

@@ -2,54 +2,6 @@
 /**
  * Fuzzy-select a solution file from work/ and run leetcode-cli tests on it.
  */
-import { autocomplete, cancel, isCancel, log } from "@clack/prompts";
-import { join, relative } from "node:path";
+import { runOnSolution } from "./solutions";
 
-const ROOT = join(import.meta.dir, "..", "..");
-const WORK_DIR = join(ROOT, "work");
-
-const files = [...new Bun.Glob("**/*.{js,ts,py,java,c,cpp,go,rs,rb,swift,kt,cs}").scanSync({ cwd: WORK_DIR })]
-  .sort((a, b) => a.localeCompare(b, undefined, { numeric: true }));
-
-if (files.length === 0) {
-  log.error(`No solution files found in ${relative(process.cwd(), WORK_DIR)}/`);
-  process.exit(1);
-}
-
-const picked = await autocomplete<string>({
-  message: "Test which solution?",
-  placeholder: "Type to search...",
-  maxItems: 12,
-  options: files.map((f) => {
-    // work layout: Difficulty/Category/<id>.<slug>.<ext>
-    const [difficulty, category, name] = f.split("/");
-    return {
-      value: f,
-      label: name ?? f,
-      hint: category ? `${difficulty} · ${category}` : difficulty,
-    };
-  }),
-  filter: (search, option) => {
-    const haystack = option.value.toLowerCase();
-    return search
-      .toLowerCase()
-      .split(/\s+/)
-      .every((token) => haystack.includes(token));
-  },
-});
-
-if (isCancel(picked)) {
-  cancel("Nothing selected.");
-  process.exit(0);
-}
-
-const proc = Bun.spawn(
-  [
-    // bun installs workspace-dep bins into this package's node_modules, not the root's
-    join(import.meta.dir, "node_modules", ".bin", "leetcode"),
-    "test",
-    join(WORK_DIR, picked),
-  ],
-  { cwd: ROOT, stdio: ["inherit", "inherit", "inherit"] },
-);
-process.exit(await proc.exited);
+await runOnSolution("test", "Test which solution?");