Restructures the Documentation tab so each group answers one operator
question.
- Split the 12-page "Stacks & Deployments" into Stacks (per-stack work)
and Deployment (the act of deploying); promote Resources Hub to a
standalone item.
- Dissolve the 2-page "Platform" junk drawer: Sidebar moves to Stacks,
Host Console moves to Fleet.
- Rename "Fleet & Multi-Node" to "Fleet"; absorb Node Compatibility
from Reference. Move Scheduled Operations from Fleet to Automation
(now a 4-page group covering Scheduled Ops, Auto-Update, Auto-Heal,
Webhooks).
- Clean up the Reference tab: drop misplaced node-compatibility, move
root-level security.mdx into reference/, delete the orphan
reference/verifying-images.mdx after porting its Available Tags
table into operations/verifying-images.mdx.
- Reorder top-level groups: Operations moves above Reference.
- Rename two misleading page titles: "Deploy Progress Modal" becomes
"Deploy Progress" (drops the UI implementation leak); "Auto-Update
Readiness" becomes "Auto-Update Policies" (matches filename and
sibling "Auto-Heal Policies").
Verified: docs.json parses as valid JSON, 59 disk .mdx files match
59 nav entries with zero orphans and zero broken refs.
Anso