feat(osint): add bounded Xquik Actor routes

[kriptoburak]

Summary

• add Xquik X Tweet Scraper and X Follower Scraper to the OSINT workflow and Actor catalog
• include bounded, schema-valid examples, Store links, cost controls, and public-data safeguards
• modernize the embedded runner with the current /v2/actors endpoint, Bearer authentication, and maxTotalChargeUsd support
• update mirrored Actor counts and diagnostics from 55+ to 57+

The README marks skills/ as a synced path. This patch keeps the skill changes source-compatible so they can be carried through the authoritative sync if needed.

Validation

• node --check skills/osint/scripts/run_actor.js
• mocked runner flow verifies endpoint, Bearer auth, secret-free URLs, and charge cap
• bash -n skills/osint/scripts/run-actor.sh skills/osint/scripts/diagnose.sh
• python3.12 normalizer test
• python3.12 skills/osint/scripts/findings-verify-hook.py --self-test
• bash skills/osint/scripts/check-collision.sh --self-test
• Skill Creator quick_validate.py skills/osint
• JSON example parsing
• git diff --check

No Actor runs were started during validation.