chore(lint): apply no-unnecessary-type-assertion fixes from typescript-eslint 8.59 (#50)

The typescript-eslint 8.59 release tightened the no-unnecessary-type-assertion
rule, surfacing 197 stale type assertions across src/ and tests/. Auto-fixed via
`npm run lint:fix`, plus 3 unused-import cleanups in test files that became
TS6133 errors after the assertions were removed:

- tests/unit/glossary-command.test.ts: drop unused Language import
- tests/unit/cli-translate-workflow.test.ts: drop unused Language import
- tests/unit/sync/sync-command.test.ts: drop unused CliSyncOptions import

Verified: lint clean, type-check clean, full test suite passes (5490/5490),
build succeeds, all 5 example workflows exit 0.

Unblocks dependabot PR #38 (typescript-eslint 8.58 → 8.59).

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: sjsyrek

src/api/style-rules-client.ts

@@ -163,7 +163,7 @@ export class StyleRulesClient extends HttpClient {
     const wire = await this.makeJsonRequest<StyleRuleWireShape>(
       'PUT',
       `/v3/style_rules/${encodeURIComponent(styleId)}/configured_rules`,
-      rules as unknown as Record<string, unknown>,
+      rules,
     );
     return mapStyleRuleDetailed(wire);
   }

src/cli/commands/config.ts

@@ -38,7 +38,7 @@ export class ConfigCommand {
       }
       return value;
     }
-    return this.maskSensitiveValues(this.config.get() as unknown as Record<string, unknown>);
+    return this.maskSensitiveValues(this.config.get());
   }
 
   /**
@@ -57,7 +57,7 @@ export class ConfigCommand {
     const config = this.config.get();
 
     // Mask sensitive values
-    return this.maskSensitiveValues(config as unknown as Record<string, unknown>);
+    return this.maskSensitiveValues(config);
   }
 
   /**

src/cli/commands/sync/register-sync-audit.ts

@@ -122,6 +122,6 @@ async function handleSyncAudit(
     if (options.format === 'json') {
       emitJsonErrorAndExit(error);
     }
-    deps.handleError(error as Error);
+    deps.handleError(error);
   }
 }

src/cli/commands/sync/register-sync-export.ts

@@ -72,6 +72,6 @@ async function handleSyncExport(
     if (options.format === 'json') {
       emitJsonErrorAndExit(error);
     }
-    deps.handleError(error as Error);
+    deps.handleError(error);
   }
 }

src/cli/commands/sync/register-sync-init.ts

@@ -214,6 +214,6 @@ async function handleSyncInit(
     if (options.format === 'json') {
       emitJsonErrorAndExit(error);
     }
-    handleError(error as Error);
+    handleError(error);
   }
 }

src/cli/commands/sync/register-sync-push.ts

@@ -75,6 +75,6 @@ async function handleSyncPush(
     if (options.format === 'json') {
       emitJsonErrorAndExit(error);
     }
-    deps.handleError(error as Error);
+    deps.handleError(error);
   }
 }

src/cli/commands/sync/register-sync-resolve.ts

@@ -103,6 +103,6 @@ async function handleSyncResolve(
     if (options.format === 'json') {
       emitJsonErrorAndExit(error);
     }
-    deps.handleError(error as Error);
+    deps.handleError(error);
   }
 }

src/cli/commands/sync/register-sync-root.ts

@@ -142,7 +142,7 @@ async function handleSyncRoot(
       }
     }
     const syncCommand = await createSyncCommand(deps);
-    const result = await syncCommand.run(options as Parameters<typeof syncCommand.run>[0]);
+    const result = await syncCommand.run(options);
     if (result.driftDetected) {
       // Soft exit — set exitCode and return so in-flight writes / auto-commit
       // steps / the --watch event loop drain cleanly instead of being killed
@@ -154,6 +154,6 @@ async function handleSyncRoot(
     if (options['format'] === 'json') {
       emitJsonErrorAndExit(error);
     }
-    handleError(error as Error);
+    handleError(error);
   }
 }

src/cli/commands/sync/register-sync-status.ts

@@ -72,6 +72,6 @@ async function handleSyncStatus(
     if (options.format === 'json') {
       emitJsonErrorAndExit(error);
     }
-    deps.handleError(error as Error);
+    deps.handleError(error);
   }
 }

src/cli/commands/sync/register-sync-validate.ts

@@ -79,6 +79,6 @@ async function handleSyncValidate(
     if (options.format === 'json') {
       emitJsonErrorAndExit(error);
     }
-    deps.handleError(error as Error);
+    deps.handleError(error);
   }
 }