feat(api): migrate SRS ladder to +3/+7 and adjust rest‑day logic

apps/cli/solutions.ts

@@ -2,6 +2,11 @@
  * Shared work/ solution picker for the test and submit entries: fuzzy-select
  * a solution file, then hand it to leetcode-cli.
  *
+ * Every bucket is listed — a 3-day or 7-day re-solve is tested and submitted
+ * exactly like a first solve — and the hint says which one a file belongs to.
+ * The db's per-solution timestamps are keyed by LC number, so the buckets of
+ * one problem share them.
+ *
  * Every run backfills the db's solutions table with created_at (from the
  * file's birthtime, mtime when the filesystem has none) so ordering works for
  * files that predate the db. Ordering is per command — test lists the most
@@ -16,9 +21,7 @@ import { autocomplete, cancel, isCancel, log } from "@clack/prompts";
 import { statSync } from "node:fs";
 import { basename, join, relative } from "node:path";
 import { problemDb } from "./db";
-
-const ROOT = join(import.meta.dir, "..", "..");
-const WORK_DIR = join(ROOT, "work");
+import { ROOT, WORK as WORK_DIR, parseWorkPath } from "./work";
 
 /** Leading LC number of a work/ file, or undefined for unnumbered names. */
 function lcNumber(rel: string): number | undefined {
@@ -70,12 +73,12 @@ export async function runOnSolution(command: "test" | "submit", message: string)
     placeholder: "Type to search...",
     maxItems: 12,
     options: files.map((f) => {
-      // work layout: Difficulty/Category/<id>.<slug>.<ext>
-      const [difficulty, category, name] = f.split("/");
+      const parsed = parseWorkPath(f);
+      const stage = parsed?.bucket === 1 ? "first solve" : `${parsed?.bucket}-day review`;
       return {
         value: f,
-        label: name ?? f,
-        hint: category ? `${difficulty} · ${category}` : difficulty,
+        label: basename(f),
+        hint: parsed ? `${stage} · ${parsed.difficulty} · ${parsed.category}` : f,
       };
     }),
     filter: (search, option) => {