chore(release): LWT 3.3.0-fork, and restore the lost 3.2.2 changelog

[HugoFara]

Cuts 3.3.0-fork, and first repairs a changelog bug that would otherwise be
made permanent by the release.

The 3.2.2 changelog was silently deleted

3.2.2 has been tagged and on main since 2026-08-05, and ApplicationInfo
reports it — but grep 3.2.2 CHANGELOG.md returned nothing. The sections read
[Unreleased] → [3.2.1-fork].

The release commit b35053cf3 did write the heading. Merge 2a9117053
(PR #259, apkg export) removed it:

commit	has [3.2.2-fork]?
aa0b366bb (first parent, PR #260)	yes
579c9c9fa (second parent, apkg branch)	no
2a9117053 (merge result)	no

That branch was cut before the release, so resolving the CHANGELOG conflict
took the branch side. The effect isn't cosmetic: the fifteen items that
shipped in 3.2.2 — the term modal, CurrentLanguage::resolveId(), the CRLF
tag-import fix, #250, #249, the data_hex identity change, thirteen security
advisories — were sitting back under [Unreleased]. Anyone running 3.2.2 had
no changelog for their version.

It had to be fixed before the release or 3.3.0's section would have absorbed
3.2.2's content and the gap would have become permanent.

Verified by extracting both and diffing: the restored section is byte-identical
to what b35053cf3 published. The ### Removed block for #266 is new work,
so it moves up into 3.3.0 rather than staying inside the restored 3.2.2.

The release

Minor rather than patch — three Added entries:

• Anki deck import (Import an existing Anki deck to seed known words #228)
• FSRS-6 scheduling groundwork (Term status model: single source of truth + Anki/FSRS-aligned scheduling #238, phase 2a)
• .apkg export and import round-trip

The reader fix is the one users are actually waiting on: selecting several
words in the reader produced a term named e6967a5826fe441a 75e3090289e2955d,
and 3.2.x still ships it.

@since 3.2.2 annotations in source are left alone — those features did ship
in 3.2.2.

Checks

• Psalm --threads=1 — no errors found
• PHPCS PSR12 on ApplicationInfo.php — 0 errors, 0 warnings
• PHPUnit — 9174 tests, 22377 assertions, all pass. The 1 warning is
  pre-existing and inside vendor/kiwilan/php-ebook.
• Vitest — 133 files, 4419 tests pass
• markdownlint MD013 count unchanged at the pre-existing 319
• No frontend rebuild: nothing in vite.config.ts or src/frontend/ reads the
  package version.