fix a crash, a false changelog entry, and three things 1.0 would freeze

Two adversarial reviews of the release. Both said do not ship, and they were
right twice over.

The seven-day view panicked. elide() cut a title at cut.len() / 2, a byte
index into a string it had counted in characters, and every movable feast
title carries an em dash: at fourteen terminal widths, 80 among them, it
aborted with exit 101 on the README's own headline command. tests/elide.rs now
cuts every title the program can print at every width it can be asked to print
at.

The changelog's first Calendar entry was false. It said a vigil or polyeleos
saint reaches fish in the three lesser fasts; the code gives wine and oil to
every rank but great, and caps the Dormition Fast at wine and oil whatever the
rank. A reader in the Dormition Fast was told this release let a saint bring
fish. docs/versioning.md makes that section a contract, so a wrong entry there
is worse than a wrong comment.

The Python bindings read the config file where the CLI reads the environment
first, so TYPIKON_JURISDICTION moved one and not the other and the two
answered for different churches on the same machine. CI now asserts they
agree, and runs the README example checker, which was standing between the
docs and reality with nothing running it.

Three changes to the surface, made now because after 1.0.0 they are a major
version: binds is null rather than the string none where a church legislates
no binding fast at all; iCalendar UIDs carry the tradition and the discipline,
which two feeds of the same day were sharing while saying different things;
and Date's Julian Day Number is behind an accessor rather than a public field.

fastLabel, emoji and reason are documented as presentation. The fields are
stable, the wording is not, and freezing three human-facing strings for a
major version was not the intent.

CHANGELOG.md

@@ -14,11 +14,14 @@ version.
 
 Everything below changes what a day reports against pre-1.0 versions.
 
-- A saint of vigil or polyeleos rank now relaxes a weekday of a fast: to wine
-  and oil inside the Great Fast, as far as fish in the Nativity, Apostles' and
-  Dormition Fasts. 74 days across 2020 to 2030 had been reported stricter than
-  any published calendar keeps them, St Nicholas and the Forty Martyrs of
-  Sebaste among them.
+- A ranked saint now relaxes a weekday of a fast. A saint of vigil or polyeleos
+  rank reaches wine and oil; a great feast reaches fish in the Nativity and
+  Apostles' Fasts and wine and oil elsewhere. No saint of any rank brings fish
+  into the Great Fast or the Dormition Fast. Days that had been reported
+  stricter than any published calendar keeps them now are not, St Nicholas on a
+  Wednesday of the Nativity Fast and the Forty Martyrs of Sebaste among them;
+  on the new calendar it changes 104 days between 1 January 2020
+  and 31 December 2030.
 - The Annunciation is tested before Great Friday and Great Saturday. In the
   years it falls on either it had been absorbed into them: reported as a total
   fast, demoted to a bullet, and its rank overwritten. It now lifts those days
@@ -36,6 +39,19 @@ Everything below changes what a day reports against pre-1.0 versions.
   no longer report any day as binding. They had borrowed Ruthenian particular
   law, which is not their law.
 
+### Interfaces
+
+- `binds` is null unless the day binds, rather than the string `"none"`. Most
+  jurisdictions legislate no binding fast at all, which is a different fact
+  from a day that happens to oblige nothing.
+- iCalendar UIDs carry the tradition and the discipline. Two feeds of the same
+  day that say different things were sharing an identity, so a client treated
+  them as one event.
+- `Date`'s Julian Day Number is behind `jdn()` and `from_jdn()` rather than a
+  public field.
+- `fastLabel`, `emoji` and `reason` are documented as presentation: the fields
+  are stable, their wording is not.
+
 ### Added
 
 - Greek and Slavic usage as an explicit axis, per jurisdiction and overridable
@@ -49,6 +65,17 @@ Everything below changes what a day reports against pre-1.0 versions.
 - `--set-default` remembers the tradition and the discipline alongside the
   jurisdiction.
 
+### Fixed
+
+- The seven-day view no longer panics. It cut a title at a byte index into a
+  string it had counted in characters, and every movable feast title carries an
+  em dash, so at fourteen terminal widths, 80 among them, it aborted with exit
+  101. Every title the program can print is now cut at every width it can be
+  asked to print at, in a test.
+- The Python bindings honour `TYPIKON_JURISDICTION`. They read the config file
+  where the command line reads the environment first, so the two answered for
+  different churches on the same machine.
+
 ### Packaging
 
 - Requires Rust 1.85, which is what the dependency tree has needed since clap