tazel.tala.run only redirects to tazel.net now. The product list and the
Tazel plugin catalog link the new address directly.

The API of the previous commit holds the catalog; this adds what people and
Tazel reach.

Pages:
- /dslplugins/tazel lists the published plugins, read from the API on its
  loopback address, and says when there is none.
- /dslplugins/tazel/<Publisher>/<Name> is the page of a plugin: its
  description, publisher, latest version, license, authors, homepage and
  repository, the plugins block that uses it, and every version with its
  date, plugin API, size, SHA-256, yanked mark and JAR.
- /dslplugins/gradle opens the Gradle catalog. It only lists: Gradle takes
  com.progmasoft.tazel.plugin from the Gradle Plugin Portal.
- The availability note says that Progmasoft publishes first and every
  account later. Texts are in the four languages of the site.

Nginx (ops/nginx/progmaweb.conf):
- On viget.progmasoft.com, index.json of a plugin goes to the API and the
  JARs come from /srv/viget/files with immutable caching; /api/ stays
  closed.
- maven.progmasoft.com serves /srv/maven, whose /tazel holds tazel-api.

ops/README.md describes the directories, their SELinux labels, the publish
and yank commands, and how a release of Tazel copies the API into the Maven
repository.

Tests cover the texts in every language, the plugins block, the Gradle list,
and that a page asks the API only for identifiers.

viget.progmasoft.com now shows, from the top:

1. The state of the registry: what it holds today, the package format,
   the publisher identity and that publishing is not open yet.
2. LANGUAGES: Tala links to viget.progmasoft.com/langs/tala; C++ is a
   gray, disabled button that leads nowhere.
3. BUILD SYSTEM DSL PLUGINS: Tazel links to
   viget.progmasoft.com/dslplugins/tazel; Gradle is a gray, disabled
   button that leads nowhere.

/langs/tala is the catalog of Tala packages and /dslplugins/tazel the
catalog of Kotlin DSL plugins for Tazel, both honestly empty. /langs and
/dslplugins redirect to them. The header, the footer and the sitemap
link the two catalogs, and the coordinates they show begin with the
catalog: /langs/tala/<Publisher>/<Name>/ and
/dslplugins/tazel/<Publisher>/<Name>/.

The text of the catalogs lives in lib/viget-catalogs.ts in all four
locales; localization.ts is close to the size limit of a file. The
two section headings are the registry's names and stay in English.

The language links of the ViGet and Progmasoft pages point at tala.run.

The language Visual X# is now Tala. The Progmasoft home page, the ViGet
pages, the dashboard and the two footers name it so in the four languages of
the site; the project file is BUILD.kts, and the source link leads to
Progmasoft/tala. The README, the operations and localization documents and
the issue templates follow.

The localization document said that a left-to-right mark follows the name of
the language in Hebrew text. That was for the `#` of the old name; the
sentence now speaks of names that end in a symbol.

The links to xsharp-lang.xyz stay: the language site is still served there.

Hebrew (he-IL) joins English, German and Russian with a complete message
tree and its own entry in the language menu.

A visitor who has not chosen a language now gets the language their browser
prefers. The Accept-Language header is negotiated by quality, only the
primary language is compared, and `iw` is accepted as the former code for
Hebrew. A browser that prefers no published language gets en-US, as before.
A language chosen in the menu is still stored in the cookie and always wins.

Hebrew does not mirror the page. The layout, the navigation and code keep
their left-to-right arrangement; only text follows the language. Blocks of
prose run right to left, short pieces such as links and buttons take the
direction of their own first letter, and inputs and code stay left to right.
The onward arrow points left in Hebrew, and a left-to-right mark keeps
"Visual X#" intact inside right-to-left text.

The Hebrew text was not reviewed by a native speaker.

Verified locally: node tests, type check, lint, prettier and a production
build; language selection per Accept-Language header against the dev server;
the Hebrew home and registration pages in a browser.