Four gaps a second site hits and cannot resolve by reading.
**Restoring on Windows** was one sentence - "the standard mysql < dump.sql" -
with no ordering. Restoring a database under running code that expects a
different schema turns a restore into a second incident, so the steps are now
ordered and each says why. It also says what `.env` costs if it is lost, which
is the part nobody discovers until they are already rebuilding: the dump does
not contain it, and without the JWT secrets every issued token dies, so every
collector and every GE-Enforce client on the fleet needs a new key.
**Rolling back** had a paragraph saying downgrades are refused and a backup is
the way back, but not the procedure. Rollback is restoring a matched pair, code
and the schema it expects, in that order - and the doc now separates it from the
case it gets confused with: a migration that failed mid-update has already been
rolled back by the installer, and fixing forward is the only move.
**Sizing, acquisition and support** were absent from the install guide entirely.
A reader could not learn how big a server to ask for, where the .exe comes from,
or where to raise a problem. The sizing is small and the reasons are stated, so
a site does not over-provision a VM for a load that is a few dozen users.
**Credentials** were described in three documents from three ends, so three
answers existed for where a key lives. One table, both ends - server and PC -
plus the two rules behind it: what a shop-floor PC holds is scoped to exactly
what it does, and a credential is delivered rather than typed, because a value
entered per machine is a value that is wrong on some machine.
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