feat(vsd_fleet_ms): enforce fleet company defaults and strengthen tri…

[MariamMabele]

…p submission/status controls

• add Company in Transport Settings and use it as Fleet transaction default (fallback to global default)
• auto-set company on Fleet doctypes/forms and propagate it to mapped docs (Stock Entry, Payment Entry, Sales Invoice)
• update trip lifecycle logic to sync trip/truck status and prevent assigning a truck to multiple active trips
• add optional financial booking enforcement before trip submission (submitted stock out/PO/JE checks with clear blocking messages)

[aakvatech]

Merged

[github-actions]

Backport failed for version-15, because it was unable to cherry-pick the commit(s).

Please cherry-pick the changes locally and resolve any conflicts.

git fetch origin version-15
git worktree add -d .worktree/backport-31-to-version-15 origin/version-15
cd .worktree/backport-31-to-version-15
git switch --create backport-31-to-version-15
git cherry-pick -x 1bb581cda7253f09c3ab2ed6ce4de5f291d60fcf