feat(lore): fill lore gaps and standardize tags to English

- Fill empty hub index sections (Zakon Taumaturgow, Sily Specjalne Gaja,
  Wybrancy Herosow) and add missing entries (Nemyo) in npcs.md
- Resolve broken template fields for Nil, Mundus, Tempus, Mistrz Losu,
  Ten Ktory jest Mroczny, Anna Heide, and Narcyza using confirmed canon
- Update Kult Otchlani org page to reflect Nil's motive for culling
  her own cultists
- Add "zaklecia" tag to all 104 spell files
- Translate ~90 Polish frontmatter tags to English vault-wide for
  consistency with the spells/ taxonomy (e.g. otchlan->abyss,
  magia-krwi->blood-magic, szkarlatny-kult->crimson-cult), keeping
  proper nouns (character/place names) and clean up legacy "#tag"
  hashtag-style artifacts left over from old Obsidian inline tags

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

races/Anioł.md

@@ -1,7 +1,7 @@
----
+---
 tags:
-  - rasa
-  - anioł
+  - race
+  - angel
 ---
 
 # Anioł

races/Demon.md

@@ -1,6 +1,6 @@
 ---
 tags:
-  - rasa
+  - race
   - demon
 ---
 

races/Elf.md

@@ -1,6 +1,6 @@
 ---
 tags:
-  - rasa
+  - race
   - elf
 ---
 

races/Feles.md

@@ -1,6 +1,6 @@
----
+---
 tags:
-  - rasa
+  - race
   - feles
 ---
 

races/Krasnolud.md

@@ -1,7 +1,7 @@
 ---
 tags:
-  - rasa
-  - krasnolud
+  - race
+  - dwarf
 ---
 
 # Krasnolud

races/Lamia.md

@@ -1,6 +1,6 @@
----
+---
 tags:
-  - rasa
+  - race
   - lamia
 ---
 

races/Malferianin.md

@@ -1,7 +1,7 @@
----
+---
 tags:
-  - rasa
-  - malferianin
+  - race
+  - malferian
 ---
 
 # Malferianin