feat: clearer, disambiguated tool names across all surfaces (#520)

Renames 18 ambiguous or hard-to-search tool names so image tools self-qualify like the other modalities ("Compress" becomes "Compress Image"), and cleans up a few awkward names. Propagated across search (constants.ts), display (en.ts + 20 locales), the OpenAPI base spec + 20 locale specs, and the docs tool-page headings in 21 languages. Removes the duplicate "Normalize Audio" summary shared by the video and audio endpoints. Tool ids and routes are unchanged, so no API paths or bookmarks break.

apps/docs/it/tools/files/epub-convert.md

@@ -1,11 +1,11 @@
 ---
 description: "Converte un EPUB in PDF, DOCX, HTML o Markdown."
-i18n_source_hash: 7d94fc18ca97
+i18n_source_hash: cb39f254ff2f
 i18n_provenance: human
 i18n_output_hash: bc94d0ccdea1
 ---
 
-# Convert EPUB {#convert-epub}
+# Converti da EPUB {#convert-epub}
 
 Converte un e-book EPUB in PDF, Word (DOCX), HTML o Markdown. Le risorse remote all'interno del libro non vengono recuperate.
 

apps/docs/it/tools/files/yaml-json.md

@@ -1,11 +1,11 @@
 ---
 description: "Converte tra YAML e JSON, in entrambe le direzioni."
-i18n_source_hash: acf8ca21ee99
+i18n_source_hash: ef0c9b633797
 i18n_provenance: human
 i18n_output_hash: 88a1fe592187
 ---
 
-# YAML / JSON {#yaml-json}
+# Converti YAML / JSON {#yaml-json}
 
 Converte tra i formati YAML e JSON in entrambe le direzioni. Carica un file YAML per ottenere JSON, oppure carica un file JSON per ottenere YAML.