fix: resolve all TypeScript LSP errors in CLI package

1. CLI tsconfig: disable composite/declaration/declarationMap, enable
   noEmit — CLI runs via bun, never compiled by tsc. Eliminates all
   TS6059/TS6307 rootDir errors.

2. Use conditional spread to filter undefined values before passing to
   renderAsync/renderDirect/tag — satisfies exactOptionalPropertyTypes.

3. Fix TS2304: schemaHash not in scope in template delete catch block,
   use schemaInput instead.

Fixes #36

packages/cli/src/index.ts

@@ -584,9 +584,9 @@ async function cmdRender(args: string[]): Promise<void> {
         envelope.value,
         store,
         {
-          resolution,
-          decay,
-          epsilon,
+          ...(resolution !== undefined && { resolution }),
+          ...(decay !== undefined && { decay }),
+          ...(epsilon !== undefined && { epsilon }),
         },
       );
       process.stdout.write(output);
@@ -597,9 +597,9 @@ async function cmdRender(args: string[]): Promise<void> {
       try {
         const hash = resolveHash(input as string, varStore);
         const output = await renderAsync(store, hash, {
-          resolution,
-          decay,
-          epsilon,
+          ...(resolution !== undefined && { resolution }),
+          ...(decay !== undefined && { decay }),
+          ...(epsilon !== undefined && { epsilon }),
           varStore,
         });
         // Output to stdout without JSON wrapping (raw output)
@@ -768,9 +768,9 @@ async function cmdVarTag(args: string[]): Promise<void> {
     const { tags, labels, deleteNames } = parseTagsLabels(tagArgs);
 
     const variable = varStore.tag(name, schema, {
-      add: Object.keys(tags).length > 0 ? tags : undefined,
-      addLabels: labels.length > 0 ? labels : undefined,
-      delete: deleteNames.length > 0 ? deleteNames : undefined,
+      ...(Object.keys(tags).length > 0 && { add: tags }),
+      ...(labels.length > 0 && { addLabels: labels }),
+      ...(deleteNames.length > 0 && { delete: deleteNames }),
     });
 
     await out(
@@ -1041,7 +1041,7 @@ async function cmdTemplateDelete(args: string[]): Promise<void> {
     );
   } catch (e) {
     if (e instanceof VariableNotFoundError) {
-      die(`Error: Template not found for schema: ${schemaHash}`);
+      die(`Error: Template not found for schema: ${schemaInput}`);
     }
     throw e;
   } finally {

packages/cli/tsconfig.json

@@ -1,8 +1,10 @@
 {
   "extends": "../../tsconfig.json",
   "compilerOptions": {
-    "rootDir": "src",
-    "outDir": "dist"
+    "composite": false,
+    "declaration": false,
+    "declarationMap": false,
+    "noEmit": true
   },
   "include": ["src"]
 }