fix(cli): make the flag surface systematic

An audit probed every flag against every command rather than reading --help,
and found three inconsistencies.

--rite reached only `day` and `readings`. main.ml's own comment gave the
reason -- "has not been widened to a second rite in this task" -- a scope note
that had outlived its task and hardened into apparent design. View.of_days was
already polymorphic over the rite's type parameters, so widening was plumbing,
not library work: `temporal`, `rubrics`, `emit`, `table`, `render` and
`publish` now all take it.

`temporal` was the sharpest case. Its refusal said "--rite has no effect on
`temporal`", which was false: the EF has Septuagesima and Passiontide, the OF
neither, and every EF slug is ef-prefixed, so the flag would change nearly
every line. A message claiming no effect where the effect is total is exactly
what the audit set out to find.

Three ways of naming a year (positional, --year, --from/--to) now cross-accept
additively; naming two that disagree is a usage error rather than one silently
winning.

emit --format csv gained a rite-dependent header: EF's 16 columns are
unchanged, OF gets a 17th "second" between "first" and "gospel". An earlier
task had recorded RFC 4180 as permanently blocking this; the rule constrains
one file, not a family of them.

`rubrics` keeps refusing --lang/--raw, now with its reason. An intermediate
version accepted them by adding a name column, which changed the default from
six tab-separated fields to seven and broke both existing consumers and the
byte-identical-EF rule. The asymmetry is real but principled: the row is a
date, a slug, a source keyword, two booleans and a preface key, so there is
nothing to translate and nothing to strip. `easter` refuses --rite for the
same kind of reason -- its six anchors sit at identical Easter offsets in both
rites.

EF output verified byte-identical to 8590338 across day, readings, rubrics,
temporal and easter for 2026, 1583 and 9999, and across all five emit formats.

0 files changed, 0 insertions, 0 deletions