fix: resolve all lint errors, improve type safety, and remove unused code

Remove unused imports, replace `any` types with proper interfaces in directus.ts
and i18n-loader.ts, exclude scripts/ and coverage/ from ESLint, and fix
unused variable warnings across the codebase.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

scripts/setup-snippets.js

@@ -1,4 +1,5 @@
 
+/* eslint-disable @typescript-eslint/no-require-imports */
 const fetch = require('node-fetch');
 require('dotenv').config();
 
@@ -19,7 +20,7 @@ async function setupSnippets() {
         schema: { name: 'snippets' }
       })
     });
-  } catch (e) {}
+  } catch (_e) {}
 
   // 2. Add Fields
   const fields = [
@@ -39,7 +40,7 @@ async function setupSnippets() {
         headers: { 'Authorization': `Bearer ${DIRECTUS_TOKEN}`, 'Content-Type': 'application/json' },
         body: JSON.stringify(f)
       });
-    } catch (e) {}
+    } catch (_e) {}
   }
 
   // 3. Add Example Data
@@ -69,7 +70,7 @@ async function setupSnippets() {
         headers: { 'Authorization': `Bearer ${DIRECTUS_TOKEN}`, 'Content-Type': 'application/json' },
         body: JSON.stringify(s)
       });
-    } catch (e) {}
+    } catch (_e) {}
   }
 
   console.log('✅ Snippets setup complete!');