Replace astronomy/expedition-club content with generic placeholders (AI)

The demo tag registry, site name, and the year-category tag convention
(expa-YYYY) were all modeled on a specific Czech astronomy club. Swapped
in generic, English placeholders instead:

- blog-config/tags.json: 12 generic topic tags (guides, news,
  tutorials, ...) replacing the Czech astronomy-themed ones.
- The year/category tag convention is now `year-YYYY` instead of
  `expa-YYYY` (discovery.js's category regex, the derived field renamed
  expa -> categoryYear, and every views.js/README usage).
- siteName and yearLabel strings (en/cs/sk) and index.html's hardcoded
  title/header text no longer say "Expedition Blog(s)" / "Expa {year}".
- README examples updated to match (kometa -> guides, expa-2026 ->
  year-2026).

Also regenerated all test content (cmjs/articles/, gitignored) with the
new generic tags and year- prefix.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01AXSVPS3UmmASiiprPfcnUd

README.md

@@ -98,8 +98,8 @@ not in frontmatter. The format is:
   as permanent: retagging or correcting the date later just means renaming the file (see below),
   but changing the slug changes the article's URL.
 - `<DDMMYYYY>` — the publish date, 8 digits, no separators (e.g. `16062026` for 16 June 2026).
-- `<tag1>+<tag2>+…` — zero or more tag ids, joined with `+`. A tag id matching `expa-YYYY` is
-  treated as the article's "year"/category, shown as a badge linking to `#category/expa-YYYY`;
+- `<tag1>+<tag2>+…` — zero or more tag ids, joined with `+`. A tag id matching `year-YYYY` is
+  treated as the article's "year"/category, shown as a badge linking to `#category/year-YYYY`;
   every other tag id is a normal topic tag, shown as a pill linking to `#tag/tag-id`. Omit this
   whole segment (and its leading `~`) if the article has no tags.
 
@@ -120,7 +120,7 @@ Steps:
 
 1. Create the author directory if it doesn't exist: `cmjs/articles/author/`
 2. Create the Markdown file directly inside it, using the naming convention above, e.g.
-   `cmjs/articles/author/my-article~16062026~kometa+expa-2026.md`
+   `cmjs/articles/author/my-article~16062026~guides+year-2026.md`
 3. Optionally add a cover image to that author's shared `cmjs/articles/author/media/` folder
    (creating it if needed), and reference it from frontmatter with `image: media/photo.jpg`.
 4. Add a frontmatter block at the top of the Markdown file
@@ -135,20 +135,20 @@ section below possible.
 
 ### Tag labels
 
-A tag in the file name is just an id (e.g. `kometa`) — the human-readable label shown on
+A tag in the file name is just an id (e.g. `guides`) — the human-readable label shown on
 tag pills comes from `cmjs/blog-config/tags.json`:
 
 ```json
 {
   "schemaVersion": 1,
   "tags": [
-    { "id": "kometa", "label": "Comet", "description": "", "aliases": [], "active": true }
+    { "id": "guides", "label": "Guides", "description": "", "aliases": [], "active": true }
   ]
 }
 ```
 
 Registering an id here is optional — an unregistered tag id still works, it just displays as
-its raw id instead of a friendly label. `expa-YYYY` year ids don't need to be registered here;
+its raw id instead of a friendly label. `year-YYYY` year ids don't need to be registered here;
 they're recognised automatically by pattern and don't use this label registry.
 
 ### Frontmatter format
@@ -216,10 +216,10 @@ The body text below the frontmatter is rendered as markdown and shown as the bio
 | `#search/linux/page/2` | Same, page 2 |
 | `#author/alice` | All articles by alice, page 1 |
 | `#author/alice/page/2` | All articles by alice, page 2 |
-| `#category/expa-2026` | All articles carrying the "expa-2026" year tag, page 1 |
-| `#category/expa-2026/page/2` | Same, page 2 |
-| `#tag/kometa` | All articles tagged "kometa", page 1 |
-| `#tag/kometa/page/2` | Same, page 2 |
+| `#category/year-2026` | All articles carrying the "year-2026" year tag, page 1 |
+| `#category/year-2026/page/2` | Same, page 2 |
+| `#tag/guides` | All articles tagged "guides", page 1 |
+| `#tag/guides/page/2` | Same, page 2 |
 | `#post/alice/my-article` | Single article at `cmjs/articles/alice/my-article~DDMMYYYY~tags.md` |
 
 Author names and category tags on each card and article are clickable links to their respective filter views. A search box in the header navigates to `#search/query`.

cmjs/blog-config/tags.json

@@ -2,162 +2,85 @@
   "schemaVersion": 1,
   "tags": [
     {
-      "id": "analogova-astrofotografie",
-      "label": "Analogová astrofotografie",
+      "id": "guides",
+      "label": "Guides",
       "description": "",
       "aliases": [],
       "active": true
     },
     {
-      "id": "astromakers",
-      "label": "Astromakers",
+      "id": "news",
+      "label": "News",
       "description": "",
       "aliases": [],
       "active": true
     },
     {
-      "id": "ccd",
-      "label": "CCD",
+      "id": "tutorials",
+      "label": "Tutorials",
       "description": "",
       "aliases": [],
       "active": true
     },
     {
-      "id": "deep-sky",
-      "label": "Deep-sky",
+      "id": "announcements",
+      "label": "Announcements",
       "description": "",
       "aliases": [],
       "active": true
     },
     {
-      "id": "digitalni-astrofotografie",
-      "label": "Digitální astrofotografie",
+      "id": "interviews",
+      "label": "Interviews",
       "description": "",
       "aliases": [],
       "active": true
     },
     {
-      "id": "existencialni-otazky",
-      "label": "Existenciální otázky",
+      "id": "opinion",
+      "label": "Opinion",
       "description": "",
       "aliases": [],
       "active": true
     },
     {
-      "id": "expedicnici",
-      "label": "Expedičníci",
+      "id": "case-studies",
+      "label": "Case Studies",
       "description": "",
       "aliases": [],
       "active": true
     },
     {
-      "id": "experimenty",
-      "label": "Experimenty",
+      "id": "community",
+      "label": "Community",
       "description": "",
       "aliases": [],
       "active": true
     },
     {
-      "id": "katalog-og",
-      "label": "Katalog OG",
+      "id": "releases",
+      "label": "Releases",
       "description": "",
       "aliases": [],
       "active": true
     },
     {
-      "id": "kometa",
-      "label": "Kometa",
+      "id": "behind-the-scenes",
+      "label": "Behind the Scenes",
       "description": "",
       "aliases": [],
       "active": true
     },
     {
-      "id": "meziplanetarni-hmota",
-      "label": "Meziplanetární hmota",
+      "id": "faq",
+      "label": "FAQ",
       "description": "",
       "aliases": [],
       "active": true
     },
     {
-      "id": "mesic",
-      "label": "Měsíc",
-      "description": "",
-      "aliases": [],
-      "active": true
-    },
-    {
-      "id": "nezarazene",
-      "label": "Nezařazené",
-      "description": "",
-      "aliases": [],
-      "active": true
-    },
-    {
-      "id": "nove-objevy",
-      "label": "Nové objevy",
-      "description": "",
-      "aliases": [],
-      "active": true
-    },
-    {
-      "id": "po-expedici",
-      "label": "Po expedici",
-      "description": "",
-      "aliases": [],
-      "active": true
-    },
-    {
-      "id": "projekty",
-      "label": "Projekty",
-      "description": "",
-      "aliases": [],
-      "active": true
-    },
-    {
-      "id": "radioastronomie",
-      "label": "Rádioastronomie",
-      "description": "",
-      "aliases": [],
-      "active": true
-    },
-    {
-      "id": "scigifoto",
-      "label": "Scigifoto",
-      "description": "",
-      "aliases": [],
-      "active": true
-    },
-    {
-      "id": "skupiny",
-      "label": "Skupiny",
-      "description": "",
-      "aliases": [],
-      "active": true
-    },
-    {
-      "id": "spolecenske-aktivity",
-      "label": "Společenské aktivity",
-      "description": "",
-      "aliases": [],
-      "active": true
-    },
-    {
-      "id": "vedouci",
-      "label": "Vedoucí",
-      "description": "",
-      "aliases": [],
-      "active": true
-    },
-    {
-      "id": "vysledky-pozorovani",
-      "label": "Výsledky pozorování",
-      "description": "",
-      "aliases": [],
-      "active": true
-    },
-    {
-      "id": "zivot-na-expedici",
-      "label": "Život na expedici",
+      "id": "resources",
+      "label": "Resources",
       "description": "",
       "aliases": [],
       "active": true

cmjs/js/discovery.js

@@ -197,8 +197,8 @@ function buildStub(author, fileName, mtime, authorRoot) {
     const { slug, date, tags, draft } = parsed;
     const path = `${authorRoot}${encodeURIComponent(fileName)}`;
     // "Category" isn't a separate concept anymore — it's just whichever tag
-    // id (if any) looks like an expedition year.
-    const category = tags.find(id => /^expa-20\d{2}$/i.test(id)) || null;
+    // id (if any) looks like a `year-YYYY` id.
+    const category = tags.find(id => /^year-20\d{2}$/i.test(id)) || null;
 
     return {
         author,
@@ -207,7 +207,7 @@ function buildStub(author, fileName, mtime, authorRoot) {
         path,
         mtime,
         category,
-        expa: category ? Number(category.replace(/^expa-/i, '')) : null,
+        categoryYear: category ? Number(category.replace(/^year-/i, '')) : null,
         date,
         tags,
         published: !draft,

cmjs/js/router.js

@@ -10,7 +10,7 @@
 //   3 segments, first = "post"                  → single article  (#post/alice/my-article)
 //   4 segments, first = "author",   third = "page" → author filter, page N  (#author/alice/page/2)
 //   4 segments, first = "category", third = "page" → category filter, page N  (#category/linux/page/2)
-//   4 segments, first = "tag",      third = "page" → tag filter, page N  (#tag/kometa/page/2)
+//   4 segments, first = "tag",      third = "page" → tag filter, page N  (#tag/guides/page/2)
 
 import { MARKED_URL } from './config.js';
 import { loadTemplates } from './templates.js';

cmjs/js/views.js

@@ -47,7 +47,7 @@ function filterLabel(filter) {
     if (!filter) return '';
     if (filter.type === 'author') return t('filterAuthor', { value: filter.value });
     if (filter.type === 'tag') return t('filterTag', { value: tagLabels.get(filter.value) || filter.value });
-    return t('filterYear', { value: filter.value.replace(/^expa-/i, 'Expa ') });
+    return t('filterYear', { value: filter.value.replace(/^year-/i, '') });
 }
 
 function pageHash(page, filter) {
@@ -116,7 +116,7 @@ function renderFilterNavigation(articles, activeFilter = null) {
         years.innerHTML = '';
         const yearCounts = new Map();
         articles.forEach(article => {
-            const year = Number(article.expa);
+            const year = Number(article.categoryYear);
             if (year) yearCounts.set(year, (yearCounts.get(year) || 0) + 1);
         });
         const yearList = document.createElement('div');
@@ -124,8 +124,8 @@ function renderFilterNavigation(articles, activeFilter = null) {
         yearList.appendChild(allArticlesLink());
         for (let year = 2026; year >= 2009; year -= 1) {
             const count = yearCounts.get(year) || 0;
-            const active = activeFilter?.type === 'category' && activeFilter.value.toLowerCase() === `expa-${year}`;
-            yearList.appendChild(renderFilterLink(t('yearLabel', { year }), `#category/expa-${year}`, count, active));
+            const active = activeFilter?.type === 'category' && activeFilter.value.toLowerCase() === `year-${year}`;
+            yearList.appendChild(renderFilterLink(t('yearLabel', { year }), `#category/year-${year}`, count, active));
         }
         years.appendChild(yearList);
     }
@@ -178,7 +178,7 @@ function renderCard(article) {
     // A post only counts as a "category" when one of its directory-name
     // tags happens to name an expedition year — not every article has one.
     setField(field('category'), article.category, (category, value) => {
-        category.textContent = t('yearLabel', { year: article.expa });
+        category.textContent = t('yearLabel', { year: article.categoryYear });
         category.href = `#category/${encodeURIComponent(value)}`;
     });
     renderTags(field('tags'), article.tags);
@@ -503,7 +503,7 @@ export async function loadArticle(hash) {
         if (coverUrl) { image.src = coverUrl; image.alt = meta.title || article.slug; } else image.closest('figure')?.remove();
         const author = field('author'); author.textContent = meta.authorName || article.author; author.href = `#author/${encodeURIComponent(article.author)}`;
         setField(field('category'), article.category, (category, value) => {
-            category.textContent = t('yearLabel', { year: article.expa });
+            category.textContent = t('yearLabel', { year: article.categoryYear });
             category.href = `#category/${encodeURIComponent(value)}`;
         });
         renderTags(field('tags'), article.tags);

cmjs/strings/cs.json

@@ -1,5 +1,5 @@
 {
-  "siteName": "Expediční blogy",
+  "siteName": "Ukázkový blog",
   "appStartError": "Blog se nepodařilo spustit: {message}",
   "articleNotFound": "Článek nebyl nalezen",
 
@@ -7,7 +7,7 @@
   "filterTag": "Štítek: {value}",
   "filterYear": "Ročník: {value}",
   "filterAllArticles": "Všechny články",
-  "yearLabel": "Expa {year}",
+  "yearLabel": "Ročník {year}",
 
   "paginationLabel": "Stránkování",
   "paginationPrevious": "Předchozí",

cmjs/strings/en.json

@@ -1,5 +1,5 @@
 {
-  "siteName": "Expedition Blogs",
+  "siteName": "Example Blog",
   "appStartError": "Failed to start the blog: {message}",
   "articleNotFound": "Article not found",
 
@@ -7,7 +7,7 @@
   "filterTag": "Tag: {value}",
   "filterYear": "Year: {value}",
   "filterAllArticles": "All articles",
-  "yearLabel": "Expa {year}",
+  "yearLabel": "Year {year}",
 
   "paginationLabel": "Pagination",
   "paginationPrevious": "Previous",

cmjs/strings/sk.json

@@ -1,5 +1,5 @@
 {
-  "siteName": "Expedičné blogy",
+  "siteName": "Ukážkový blog",
   "appStartError": "Blog sa nepodarilo spustiť: {message}",
   "articleNotFound": "Článok nebol nájdený",
 
@@ -7,7 +7,7 @@
   "filterTag": "Štítok: {value}",
   "filterYear": "Ročník: {value}",
   "filterAllArticles": "Všetky články",
-  "yearLabel": "Expa {year}",
+  "yearLabel": "Ročník {year}",
 
   "paginationLabel": "Stránkovanie",
   "paginationPrevious": "Predchádzajúca",

index.html

@@ -3,7 +3,7 @@
 <head>
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1">
-    <title>Expedition Blogs</title>
+    <title>Example Blog</title>
     <link rel="stylesheet" href="css/reset.css">
     <link rel="stylesheet" href="css/header.css">
     <link rel="stylesheet" href="css/layout.css">
@@ -17,7 +17,7 @@
 <body class="blog-page">
     <header>
         <!-- Site title always links back to the article list -->
-        <a href="#" id="site-title">Expedition Blogs</a>
+        <a href="#" id="site-title">Example Blog</a>
 
         <!-- Search form — submits to #search/query via router.js -->
         <form id="search-form" role="search">