fix: delete issues, ePub reader (JSZip, linear cover, fonts), Pico dialog, UI polish

- Add POST /issues/<id>/delete route with file cleanup
- Fix ePub reader: add JSZip dependency, make cover linear in spine,
  inject system fonts into rendition
- Replace browser confirm() with Pico CSS dialog component
- Fix dashboard button sizing and consistency
- Add favicon, override Pico font stack to suppress Firefox warnings
- Compact issue action buttons

Made-with: Cursor

src/epub_builder.py

@@ -1,7 +1,7 @@
 import json
 import os
 import re
-from datetime import date
+from datetime import date, datetime
 
 from bs4 import BeautifulSoup
 from ebooklib import epub
@@ -67,6 +67,7 @@ def build_epub(
     issue_type: str = "weekly",
 ) -> str:
     os.makedirs(output_dir, exist_ok=True)
+    ts = datetime.now().strftime("%Y%m%d%H%M%S")
 
     articles = (
         Article.query
@@ -91,7 +92,7 @@ def build_epub(
         )
 
     book = epub.EpubBook()
-    book.set_identifier(f"pi-{week_start.isoformat()}")
+    book.set_identifier(f"pi-{week_start.isoformat()}-{issue_type}-{ts}")
     book.set_title(title)
     book.set_language("en")
     book.add_author("Plymouth Independent")
@@ -99,6 +100,11 @@ def build_epub(
     with open(cover_path, "rb") as f:
         book.set_cover("cover.jpg", f.read())
 
+    for item in book.get_items():
+        if item.get_name() == "cover.xhtml":
+            item.is_linear = True
+            break
+
     style = epub.EpubItem(
         uid="style", file_name="style/default.css",
         media_type="text/css", content=EPUB_CSS.encode("utf-8"),
@@ -162,10 +168,16 @@ def build_epub(
     book.add_item(epub.EpubNcx())
     book.add_item(epub.EpubNav())
 
-    book.spine = ["nav"] + chapters
+    book.spine = ["cover", "nav"] + chapters
 
     iso_week = week_start.isocalendar()[1]
-    filename = f"plymouth-independent-{week_start.year}-W{iso_week:02d}.epub"
+    if issue_type == "multi_week":
+        w2 = week_end.isocalendar()[1]
+        filename = f"plymouth-independent-{week_start.year}-W{iso_week:02d}-W{w2:02d}-{ts}.epub"
+    elif issue_type == "single_article":
+        filename = f"plymouth-independent-single-{ts}.epub"
+    else:
+        filename = f"plymouth-independent-{week_start.year}-W{iso_week:02d}-{ts}.epub"
     epub_path = os.path.join(output_dir, filename)
     epub.write_epub(epub_path, book)