Trim confusable-folding caveat from filter docs

Co-Authored-By: Claude Opus 4.8 <[email protected]>

docs/cli_commands.md

@@ -124,7 +124,7 @@ Lets a repeater decrypt channels it holds the key for, inspect the plaintext, an
 
 **How it works:** the repeater only decrypts channels you explicitly load a key for (see `filter channel`). For those channels it reads the sender name and message text; any message matching a blocked keyword (text, case-insensitive substring) or blocked sender (case-insensitive substring of the sender name) is dropped instead of forwarded. All other channels — and direct messages — are never decrypted and forward exactly as before.
 
-**Unicode handling:** before matching, both the message and your blocked terms are Unicode-folded so common evasion tricks don't slip through — look-alike characters (fullwidth, mathematical bold/italic, circled/squared letters, regional-indicator "flag" letters, and common Cyrillic/Greek homoglyphs) are mapped to the plain ASCII letter they imitate, accents are stripped, and zero-width / combining / variation-selector characters are removed. It is best-effort confusable folding, not the full Unicode confusables table, so it raises the bar against homoglyph abuse rather than guaranteeing it's impossible.
+**Unicode handling:** before matching, both the message and your blocked terms are Unicode-folded so common evasion tricks don't slip through — look-alike characters (fullwidth, mathematical bold/italic, circled/squared letters, regional-indicator "flag" letters, and common Cyrillic/Greek homoglyphs) are mapped to the plain ASCII letter they imitate, accents are stripped, and zero-width / combining / variation-selector characters are removed.
 
 **Limitations:**
 - This only stops **this** repeater from forwarding the message. Other repeaters running stock firmware still forward it, so this thins coverage at your node rather than removing the message from the mesh.