m's 2026-05-08 batch Item 2: some rules don't always apply per-instance.
Antrag auf Kostenentscheidung (RoP.151) only fires when a party files
for it; some appeal-related deadlines depend on specific facts. Today
they render in the timeline as if always applicable; the save-to-
project modal pre-checks them so the user has to remember to uncheck.
New paliad.deadline_rules.is_optional bool flag (default false). Threads
through the Go model, ruleColumns SELECT, UIDeadline JSON, and the
frontend save modal:
- Migration 066 adds the column + comment + a starter UPDATE that
flips RoP.151 to is_optional=true. m can flip more via SQL as he
reviews the rule library — distinct from is_mandatory, which is
about statutory strictness once the rule applies (an "auf Antrag"
rule can be is_mandatory=true once requested).
- Save modal: optional rows pre-uncheck (the user opts in) and a
small "auf Antrag" / "on request" pill renders in the meta line.
Court-determined rows still pre-uncheck via the existing disabled
path; isOptional doesn't override that.
Migration applied to live Supabase; tracker at v66.
Refs m/paliad#15 (m's 2026-05-08 18:21 follow-up batch Item 2).
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