docs: improve JobCtrl discovery and comparison

[ebarti]

Summary

• refresh the evidence-backed comparison against current immutable snapshots of Career-Ops and AI Job Search
• add JobOps as the closest reviewed graphical alternative and retain JobSync as an adjacent watch
• use JobCtrl.dev as the search identity while keeping the product name JobCtrl
• add a direct Apple-silicon early-tester path to the homepage and README
• add a root IndexNow verification key for post-deployment URL notification
• update docs regression coverage for the four-card desktop/mobile layout and current search metadata

Why

JobCtrl already has crawlable docs, a live demo, and strong product detail, but its name collides with an older workforce-management product and its public pages did not provide a focused tester conversion path. The comparison had also fallen behind material competitor changes and omitted JobOps, the closest reviewed web application.

Validation

• node --test scripts/docs-launch-copy.test.mjs
• corepack pnpm docs:build
• corepack pnpm docs:check:runtime
• git diff --check

Coordination

This change is version-neutral: it does not modify package versions, release tags, install pins, or release mechanics. Merge it after the separate public-version reset so that work can establish the new baseline first.