Fiori ESLint Rule Developer

Add a new ESLint rule to @sap-ux/eslint-plugin-fiori-tools following the established patterns in the monorepo.

⚡ Efficiency rules — read before doing anything

1. Use the Read tool directly — never Bash cat or spawn Explore subagents for file reading
2. Read everything in one parallel batch — each fast path lists the exact files; read them all at once in a single turn
3. Run only the new test file during development — not the full package suite:

   NODE_OPTIONS="--experimental-vm-modules" npx jest --testPathPatterns="sap-[rule-name]" --no-coverage
   

Step 1 — Identify the rule type, then read the reference file