feat(linkedin): read profile analytics and services

[gauravsaxena1997]

What and why

LinkedIn currently has messaging and search-oriented adapters, but no read-only way to inspect the career profile surfaces that are visible in an authenticated browser session. For job-search and career workflow agents, this leaves profile state opaque: headline, About text, profile dashboard counters, and Services page details have to be checked manually.

This PR adds focused read adapters for those profile surfaces without performing any LinkedIn write actions.

What this PR does

Adds three Strategy.COOKIE LinkedIn browser adapters:

opencli linkedin profile-read -f json
opencli linkedin profile-analytics -f json
opencli linkedin services-read -f json

Implementation details:

• Adds shared LinkedIn helpers for auth-wall checks, safe URL validation, limit parsing, text normalization, and evaluate-result unwrapping
• profile-read extracts visible profile identity, headline, location, About text, About character count, About skills, experience, education, services, and featured text
• profile-analytics extracts visible dashboard counters such as profile views, post impressions, search appearances, followers, and connections when present
• services-read discovers or accepts a Services page URL and extracts overview, availability, work locations, pricing, provided services, media metadata, message/review visibility, and raw page text
• All commands are read-only and require an authenticated LinkedIn browser session

Live verification

Verified against a logged-in LinkedIn profile session:

• profile-read returned the current headline, About text, About skill chips, education, experience, and services summary
• profile-analytics returned profile dashboard counters including profile views, post impressions, search appearances, and followers
• services-read returned the Services overview, 10 provided services, remote/in-person availability, pricing, and 4 media entries with titles/descriptions

Checklist

• npm run build
• npx vitest run --project adapter clis/linkedin/profile-read.test.js clis/linkedin/profile-analytics.test.js clis/linkedin/services-read.test.js
• npm run typecheck
• node scripts/check-typed-error-lint.mjs
• node scripts/check-silent-column-drop.mjs

[jackwener]

Closed as superseded by consolidated PR #1731, merged as b6965a5.

[jackwener]

Superseded by consolidated PR #1731 (merged as b6965a5).