fix: resolve strict typecheck fallout in setup, routing, and tests

src/models/github.ts

@@ -39,7 +39,7 @@ function toOpenAIContent(content: string | MessageContentPart[]): string | OpenA
       }
       const url = part.source.type === 'base64'
         ? `data:${part.source.media_type};base64,${part.source.data}`
-        : part.source.url;
+        : (part.source.url ?? '');
       return { type: 'image_url', image_url: { url } };
     }
     if (part.type === 'audio') {

src/models/local/llamacpp.test.ts

@@ -405,7 +405,7 @@ describe('normalizeMessagesForLlamaCpp', () => {
         content: [
           { type: 'text', text: 'Searching...' },
           { type: 'tool_use', id: 'call_1', name: 'web.search', input: { query: 'news' } },
-        ] as Message['content'],
+        ] as unknown as Message['content'],
       },
     ];
 
@@ -433,13 +433,13 @@ describe('normalizeMessagesForLlamaCpp', () => {
         role: 'assistant',
         content: [
           { type: 'tool_use', id: 'call_1', name: 'web.search', input: { query: 'news' } },
-        ] as Message['content'],
+        ] as unknown as Message['content'],
       },
       {
         role: 'user',
         content: [
           { type: 'tool_result', tool_use_id: 'call_1', content: 'Results here', is_error: false },
-        ] as Message['content'],
+        ] as unknown as Message['content'],
       },
     ];
 
@@ -460,14 +460,14 @@ describe('normalizeMessagesForLlamaCpp', () => {
         content: [
           { type: 'tool_use', id: 'call_a', name: 'tool.a', input: {} },
           { type: 'tool_use', id: 'call_b', name: 'tool.b', input: { x: 1 } },
-        ] as Message['content'],
+        ] as unknown as Message['content'],
       },
       {
         role: 'user',
         content: [
           { type: 'tool_result', tool_use_id: 'call_a', content: 'A result' },
           { type: 'tool_result', tool_use_id: 'call_b', content: 'B result' },
-        ] as Message['content'],
+        ] as unknown as Message['content'],
       },
     ];
 
@@ -492,13 +492,13 @@ describe('normalizeMessagesForLlamaCpp', () => {
         role: 'assistant',
         content: [
           { type: 'tool_use', id: 'call_1', name: 'file.read', input: { path: '/tmp/x' } },
-        ] as Message['content'],
+        ] as unknown as Message['content'],
       },
       {
         role: 'user',
         content: [
           { type: 'tool_result', tool_use_id: 'call_1', content: 'File not found', is_error: true },
-        ] as Message['content'],
+        ] as unknown as Message['content'],
       },
     ];
 
@@ -518,13 +518,13 @@ describe('normalizeMessagesForLlamaCpp', () => {
         content: [
           { type: 'text', text: 'Checking...' },
           { type: 'tool_use', id: 'tc_0', name: 'weather.get', input: { city: 'NYC' } },
-        ] as Message['content'],
+        ] as unknown as Message['content'],
       },
       {
         role: 'user',
         content: [
           { type: 'tool_result', tool_use_id: 'tc_0', content: 'Sunny, 72F' },
-        ] as Message['content'],
+        ] as unknown as Message['content'],
       },
       { role: 'assistant', content: 'The weather in NYC is sunny, 72F.' },
     ];

src/models/local/ollama.test.ts

@@ -375,7 +375,7 @@ describe('normalizeMessagesForOllama', () => {
         content: [
           { type: 'text', text: 'Let me search for that.' },
           { type: 'tool_use', id: 'call_1', name: 'web.search', input: { query: 'latest news' } },
-        ] as Message['content'],
+        ] as unknown as Message['content'],
       },
     ];
 
@@ -402,13 +402,13 @@ describe('normalizeMessagesForOllama', () => {
         role: 'assistant',
         content: [
           { type: 'tool_use', id: 'call_1', name: 'web.search', input: { query: 'news' } },
-        ] as Message['content'],
+        ] as unknown as Message['content'],
       },
       {
         role: 'user',
         content: [
           { type: 'tool_result', tool_use_id: 'call_1', content: 'Breaking news: ...', is_error: false },
-        ] as Message['content'],
+        ] as unknown as Message['content'],
       },
     ];
 
@@ -430,14 +430,14 @@ describe('normalizeMessagesForOllama', () => {
         content: [
           { type: 'tool_use', id: 'call_1', name: 'web.search', input: { query: 'a' } },
           { type: 'tool_use', id: 'call_2', name: 'web.search', input: { query: 'b' } },
-        ] as Message['content'],
+        ] as unknown as Message['content'],
       },
       {
         role: 'user',
         content: [
           { type: 'tool_result', tool_use_id: 'call_1', content: 'Result A' },
           { type: 'tool_result', tool_use_id: 'call_2', content: 'Result B' },
-        ] as Message['content'],
+        ] as unknown as Message['content'],
       },
     ];
 
@@ -457,13 +457,13 @@ describe('normalizeMessagesForOllama', () => {
         content: [
           { type: 'text', text: 'Let me check.' },
           { type: 'tool_use', id: 'tc_0', name: 'weather.get', input: { city: 'NYC' } },
-        ] as Message['content'],
+        ] as unknown as Message['content'],
       },
       {
         role: 'user',
         content: [
           { type: 'tool_result', tool_use_id: 'tc_0', content: 'Sunny, 72F' },
-        ] as Message['content'],
+        ] as unknown as Message['content'],
       },
       { role: 'assistant', content: 'The weather in NYC is sunny, 72F.' },
     ];

src/models/openai.baseurl.test.ts

@@ -23,6 +23,9 @@ describe('OpenAIClient', () => {
     });
 
     expect(capturedOptions).toBeDefined();
-    expect(capturedOptions.baseURL).toBe('https://example.com/v1');
+    if (!capturedOptions) {
+      throw new Error('Expected OpenAI options to be captured');
+    }
+    expect((capturedOptions as Record<string, unknown>)['baseURL']).toBe('https://example.com/v1');
   });
 });

src/models/openai.ts

@@ -36,7 +36,7 @@ function toOpenAIContent(content: string | MessageContentPart[]): string | OpenA
       // OpenAI accepts data URIs or regular URLs
       const url = part.source.type === 'base64'
         ? `data:${part.source.media_type};base64,${part.source.data}`
-        : part.source.url;
+        : (part.source.url ?? '');
       return { type: 'image_url', image_url: { url } };
     }
     if (part.type === 'audio') {