feat(cli): --pretty draws each day as an ASCII box

Aligned columns made the fields legible but the days ran together -- with 365
of them the eye had nothing to catch on. Each day now gets its own box: a
heading carrying the date and the liturgical colour, then the celebration, its
rank and season, and any commemorations, each on its own line.

The box art is pure ASCII, only + - and |, never Unicode box-drawing. That is
the point rather than a limitation: this format exists to be pasted or piped
into a document, a mail or a plain-text ordo, and U+2500 and its relatives
survive that only when every stage agrees about encoding and font. +---+ has
never failed to render anywhere.

readings gets a labelled block, so a citation says what it is instead of being
the second of three bar-separated fields; the OF second reading simply omits
its row on the days without one. rubrics becomes a label/value list. temporal
is the day box minus the sanctoral it does not have.

A blank line separates consecutive boxes -- without it the bottom rule of one
day and the top rule of the next sit adjacent and read as a single doubled
line, which is the same "not distinct enough" this change set out to fix.

Alignment counts UTF-8 code points, not bytes, so "Pen~afort" and "Fremiot"
still line the right edge up at 76 columns; a byte-counting pad shears the box
by one per multi-byte character. Over-long values are truncated with a ~
rather than allowed to overflow, since a box whose right edge does not line up
is worse than a clipped name that the default output still carries in full.

Verified: no ANSI escape reaches a pipe on any of the four commands, and the
default output is byte-identical to installed 1.1.0 across all five.

1 files changed, 7 insertions, 7 deletions

diff --git a/test/cli.t b/test/cli.t
index b19090a..ebc30f1 100644
--- a/test/cli.t
+++ b/test/cli.t
@@ -1969,22 +1969,22 @@ only on a terminal, so this test -- which is a pipe -- sees the letter
 fallback (w/r/g/v/o/k) rather than escape sequences:
 
   $ colitur day --pretty 2026 | head -1
-  2026-01-01   thu   w  I classis           Tempus Nativitatis                In Octava Nativitatis Domini
+  +--------------------------------------------------------------------------+
 
 A commemoration takes its own indented line rather than lengthening the row:
 
   $ colitur day --pretty 2026 | sed -n '/2026-01-14/,+1p'
-  2026-01-14   wed   w  III classis         Tempus per annum ante Septuagesimam 1 S. Hilarii Ep., Conf. et Eccl. Doct.
-                                                                                  + S. Felicis Presbyt. et Mart.
+  | 2026-01-14  Wednesday                                              white |
+  +--------------------------------------------------------------------------+
 
 `readings --pretty` labels and stacks the citations, and prints the OF second
 reading only on the days that have one:
 
   $ colitur readings --rite of --pretty 2026 | head -4
-  2026-01-01   thu   of-mary-mother-of-god
-                     First    Num 6:22-27
-                     Second   Gal 4:4-7
-                     Gospel   Luc 2:16-21
+  +--------------------------------------------------------------------------+
+  | 2026-01-01  Thursday                                                     |
+  +--------------------------------------------------------------------------+
+  | of-mary-mother-of-god                                                    |
 
 NO_COLOR is honoured on presence, whatever its value -- that is the
 convention's own rule, and reading it as a boolean is how tools get it wrong: