DOCS-1565 - SOC Analyst Agent GA - Docs and release notes

[kimsauce]

Purpose of this pull request

This pull request promotes the SOC Analyst Agent from Public Preview to GA. It's a successor to #6901, which had merged into the Mobot GA branch (#6897) before the two release schedules diverged — Mobot ships 7/29, SOC Analyst Agent targets August 3, 2026.

Changes:

• soc-analyst-agent.md — full GA rewrite (previously Public Preview)
• CSE hub cards (index.md, about-cse-insight-ui.md) updated to point to the SOC Analyst Agent instead of Insight Summary
• insight-summary.md removed (content absorbed into the SOC Analyst Agent's "What Happened" field) — sidebar entry removed, 301 redirect added
• blog-cse/2026-08-03-application.md — GA release note
• Updated AI Verdict screenshots reflecting the redesigned insight UI
• ai-machine-learning.md — removes the "Summary Agent" section, restores the "Summary Agent → absorbed into SOC Analyst Agent" FAQ bullet, and un-hides the FedRAMP availability FAQ mentioning the SOC Analyst Agent (all three were held back in DOCS-1548 - Mobot, Example Prompts, AI/ML FAQ | GA docs #6897 pending this PR)

Note for whoever merges this: since #6897 (Mobot GA) hasn't merged to main yet as of this PR's creation, the diff for ai-machine-learning.md currently shows both Mobot and SOC changes mixed together (main doesn't have Mobot's changes yet either). Once #6897 merges, rebase this branch onto the updated main — the diff for that file will collapse down to just the SOC-specific delta described above.

Select the type of change

• Minor Changes - Typos, formatting, slight revisions
• New Content - New features, sections, pages, tutorials
• Update Content - Revisions, updating sections
• Site and Tools - .clabot, version updates, maintenance, dependencies, new packages for the site (Docusaurus, Gatsby, React, etc.)

Ticket (if applicable)

https://sumologic.atlassian.net/browse/DOCS-1565

[mafsumo]

Pushed two doc updates per SME feedback:

1. Removed Recommended Actions from GA scope. Commented out the Execute Action → playbook → Automations tab flow in the AI Investigation tab (not deleted, so it's easy to re-enable later). Updated the FAQ "Can the agent take containment actions on its own?" accordingly.
2. Added a "Check indicators against threat intelligence" section under the Mobot investigation flow, covering auto-investigation and Mobot checking insight indicators against Sumo Logic's global threat intel feeds, custom feeds, and connected inventory sources, plus example prompts. Also added one example prompt to the Mobot Example Prompts doc.

— via Claude Code