chore: reorganize repo structure and update docs

- move temp scripts to scripts/, cv files to cv/, jobs.csv to results/
- update index.ts and recheck.ts CSV path to results/jobs.csv
- fix imports in scripts/ to use ../config.ts and ../fetch.ts
- update CLAUDE.md and README.md to reflect new structure
- add plans/ with LinkedIn post drafts
- update .gitignore: ignore results/, jobs/, cv binaries, .DS_Store

recheck.ts

@@ -2,7 +2,7 @@
 import { searches } from "./config.ts";
 import { fetchJobs, SOFTWARE_TITLE_RE } from "./fetch.ts";
 
-const CSV = "./jobs.csv";
+const CSV = "./results/jobs.csv";
 
 const existingIds = new Set<string>();
 try {