fix: enforce folder trust for workspace settings, skills, and context (#17596)

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

packages/core/src/config/config.ts

@@ -918,6 +918,7 @@ export class Config {
         await this.getSkillManager().discoverSkills(
           this.storage,
           this.getExtensions(),
+          this.isTrustedFolder(),
         );
         this.getSkillManager().setDisabledSkills(this.disabledSkills);
 
@@ -1924,6 +1925,7 @@ export class Config {
       await this.getSkillManager().discoverSkills(
         this.storage,
         this.getExtensions(),
+        this.isTrustedFolder(),
       );
       this.getSkillManager().setDisabledSkills(this.disabledSkills);