feat(OllamaProvider): add model options, streaming support, and thinking tokens

- Add IOllamaModelOptions interface for runtime options (num_ctx, temperature, etc.)
- Extend IOllamaProviderOptions with defaultOptions and defaultTimeout
- Add IOllamaChatOptions for per-request overrides
- Add IOllamaStreamChunk and IOllamaChatResponse interfaces
- Add chatStreamResponse() for async iteration with options
- Add collectStreamResponse() for streaming with progress callback
- Add chatWithOptions() for non-streaming with full options
- Update chat() to use defaultOptions and defaultTimeout

test/test.vision.anthropic.ts

@@ -1,8 +1,9 @@
 import { expect, tap } from '@git.zone/tstest/tapbundle';
 import * as qenv from '@push.rocks/qenv';
-import * as smartfile from '@push.rocks/smartfile';
+import { SmartFs, SmartFsProviderNode } from '@push.rocks/smartfs';
 
 const testQenv = new qenv.Qenv('./', './.nogit/');
+const smartfs = new SmartFs(new SmartFsProviderNode());
 
 import * as smartai from '../ts/index.js';
 
@@ -21,7 +22,7 @@ tap.test('Anthropic Vision: should analyze coffee image with latte art', async (
   const imagePath = './test/testimages/coffee-dani/coffee.jpg';
   console.log(`Loading coffee image from: ${imagePath}`);
 
-  const imageBuffer = await smartfile.fs.toBuffer(imagePath);
+  const imageBuffer = await smartfs.file(imagePath).read();
   console.log(`Image loaded, size: ${imageBuffer.length} bytes`);
 
   const result = await anthropicProvider.vision({
@@ -45,7 +46,7 @@ tap.test('Anthropic Vision: should analyze laptop/workspace image', async () =>
   const imagePath = './test/testimages/laptop-nicolas/laptop.jpg';
   console.log(`Loading laptop image from: ${imagePath}`);
 
-  const imageBuffer = await smartfile.fs.toBuffer(imagePath);
+  const imageBuffer = await smartfs.file(imagePath).read();
   console.log(`Image loaded, size: ${imageBuffer.length} bytes`);
 
   const result = await anthropicProvider.vision({
@@ -69,7 +70,7 @@ tap.test('Anthropic Vision: should analyze receipt/document image', async () =>
   const imagePath = './test/testimages/receipt-annie/receipt.jpg';
   console.log(`Loading receipt image from: ${imagePath}`);
 
-  const imageBuffer = await smartfile.fs.toBuffer(imagePath);
+  const imageBuffer = await smartfs.file(imagePath).read();
   console.log(`Image loaded, size: ${imageBuffer.length} bytes`);
 
   const result = await anthropicProvider.vision({