Remove Security Edge Free Tier from the documentation

[akadymov-wallarm]

Summary

Removes every reference to the Security Edge Free Tier subscription from the current (6.x) and preview (7.x) guides. The dedicated page is deleted, the plan section is dropped from the subscription plans page, and the availability notes scattered across feature pages are reworded.

Heads-up before reviewing

Two things worth a decision from you:

1. The Free Tier is a live self-service plan. Before this change, getting-started.md stated that every new Console account is automatically enrolled in it, and the signup URLs on the plans page were live. After this change the plan users land on is undocumented. If the intent is narrower (retiring the plan, or only correcting its terms), say so and this shrinks a lot.

2. getting-started.md lost its signup instructions. The Self-signup and Welcome wizard subsections were children of the Free Tier section and were removed with it. That took out content that is not Free-Tier-specific:

   • the Wallarm Cloud table — US/EU signup links, physical locations, Console URLs, API endpoints (the quickstart was the only place listing them)
   • the Welcome Wizard walkthrough and screenshot
   • the "Once the Welcome Wizard is completed, continue with one of:" list — four onward paths, so the page now has no onward deployment pointers
   • the Demo Node note

   Happy to restore any of these under the new Wallarm account section.

Also note that some removed text stated limitations that existed only in Free Tier context and are now simply absent: CDN nodes unsupported, the 100%/200% monthly quota cutoffs, the 3-user cap, and the shorter (3-month) retention periods.

Changes

Page removal

• Delete docs/latest/installation/security-edge/free-tier.md plus its docs/6.x/ copy and docs/7.x/ wrapper. Note the 6.x Security Edge pages are full frozen copies rather than include wrappers, so each edit is applied in both places.
• Remove the nav entry from mkdocs-6.x.yml and mkdocs-7.x.yml.
• Add redirects to the Security Edge overview for the root and /7.x/ URLs.

Content

• subscription-plans.md — drop the Security Edge Free Tier section; reword the Infrastructure Discovery and AI Hypervisor plan notes.
• quickstart/getting-started.md — Security Edge Free Tier section becomes Wallarm account; its two subsections are removed (see above).
• security-edge/overview.md, se-connector.md, inline/deployment.md — drop the Free Tier and Quick setup wizard references.
• user-guides/settings/subscriptions.md — drop the Free tier usage section. This incidentally removes two links to #free-tier and #free-tier-us-cloud, anchors that never existed.
• about-wallarm/data-retention-policy.md — collapse the Paid subscription and Free tier columns into one Retention period column carrying the paid values.
• detecting-vulnerabilities.md, user-guides/nodes/cdn-node.md, business-logic-abuse-detection.md, ai-payload-inspection.md — drop the Free Tier availability notes. In the last two, the "available in Free Tier" and "if you use other subscriptions, contact Support" bullets are collapsed into one, since removing only the first left the second dangling.
• llms.txt / llms.md for 6.x and 7.x — drop the deleted page's entry. The free-tier farming text in the Business Logic Abuse description is kept: it names an abuse pattern, not the subscription.

Anchor fixes — five inbound links pointed at anchors this PR removes:

File	Fix
docs/latest/quickstart/getting-started.md:8	→ #wallarm-account
docs/latest/about-wallarm/subscription-plans.md:85	→ #wallarm-account
docs/latest/api-attack-surface/setup.md:19	→ #wallarm-account
docs/5.0/about-wallarm/subscription-plans.md:64	→ #wallarm-account
docs/5.0/installation/security-edge/free-tier.md:11	Welcome Wizard delinked, text kept

Scope: 5.x is intentionally left alone

The 5.x guide keeps its Free Tier page, plan section, nav entry, and llms entries — frozen legacy content that was accurate when it froze. Three edits there were unavoidable: the CDN node limitation bullet, and the two link fixes above, because docs/5.0/quickstart/getting-started.md is a wrapper around docs/latest and so lost the anchors too. Cleaning 5.x fully can be a follow-up if you want it.

Verification

• zensical build on 6.x and 7.x: clean apart from one pre-existing anchor warning in admin-en/configure-wallarm-mode.md:3 (#attack-analysis_1), untouched here.
• zensical build on 5.x: 8 anchor warnings, all pre-existing in files this PR does not touch (check-attack.md, the protecting-against-* guides, use-search.md).
• Reviewed locally via ./serve.sh mkdocs-6.x.yml; all 12 changed pages render, and grep -ri "free tier" over the built HTML returns nothing.
• Netlify preview is the real check for the redirects — _redirects is inert on the local dev server.

🤖 Generated with Claude Code

https://claude.ai/code/session_0151cYHZ8QS9hNZEiSF2P3db

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