[18.0] [IMP] spreadsheet_oca: named input parameters with domain substitution

[dnplkndll]

Adds named input parameters: a spreadsheet cell drives the domain of the Odoo
pivots inside it, so changing the cell re-filters the next refresh.

Depends on #99. This PR carries three of its commits — the
shared pair plus the scheduled refresh — because input parameters extend
spreadsheet.refresh.schedule. All three drop out once #99 merges.

Non-mechanical points worth flagging

• Substitution touches only the value position of a domain leaf — never a
  field name, never an operator, and it recurses into nested domains. A
  parameter can therefore filter a domain but cannot restructure it.
• An unknown token is left literal and logged, rather than resolving to
  something that silently matches everything.

AI-assisted (Claude Code); every change reviewed, tested, and owned by the author.