fix: remove AUTO-GENERATED comment and redundant instruction from template (#6)

Remove misleading 'do not edit directly' comment (plugins DO edit).
Remove 'Be concise' from rule 8 (redundant per agnix).

Author: avifenesh

templates/CLAUDE.md.tmpl

@@ -1,4 +1,3 @@
-<!-- AUTO-GENERATED by agent-core sync. Do not edit directly. -->
 # {{pluginName}}
 
 > {{description}}
@@ -30,7 +29,7 @@
 5. **Always run git hooks** - Never bypass pre-commit or pre-push hooks.
 6. **Use single dash for em-dashes** - In prose, use ` - ` (single dash with spaces), never ` -- `.
 7. **Report script failures before manual fallback** - Never silently bypass broken tooling.
-8. **Token efficiency** - Be concise. Save tokens over decorations.
+8. **Token efficiency** - Save tokens over decorations.
 
 ## Model Selection