Swedish adaptation: Instegscertifikat and HAREC content

- Sections and slides rewritten in Swedish; German law and institutions replaced by
  Swedish/CEPT/ITU equivalents (PTS, SSA, PTSFS 2025:1, SSMFS 2008:18), unverified
  statements marked "% TODO VERIFY"
- New toc: INSTEG, HAREC, UPPGRADERING; section idents are Swedish (see ident-map.tsv)
- Exam-question tags, BNetzA question pool, solutions and the German SWL course removed
- Static pages, snippets, applets, READMEs and image alt-texts translated
- TikZ labels translated; SVG drawings regenerated (drawing 689 still fails to build
  upstream: it references a missing photo)
- Changed from the original: not endorsed by DARC e.V., SSA or PTS

Co-Authored-By: Claude Sonnet 5.5 <[email protected]>

contents/drawings/1022.tex

@@ -10,5 +10,5 @@
     ++(0.6,0) --
     ++(0.6,2.5) --
     ++(3.7,0);
-    \draw [dashed, gray] (1.025,0) node[anchor=north](){$f_\text{g}$} -- ++(0,3) node[near start, anchor=south, rotate=-90] () {Grenzfrequenz};
+    \draw [dashed, gray] (1.025,0) node[anchor=north](){$f_\text{g}$} -- ++(0,3) node[near start, anchor=south, rotate=-90] () {Gränsfrekvens};
 \end{circuitikz}