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Use markdown formatting when appropriate.\";\n\n const buildGeminiBody = () => ({\n systemInstruction: {\n parts: [{ text: systemPrompt }],\n },\n generationConfig: {\n temperature: 1,\n topP: 0.95,\n maxOutputTokens: 4096,\n },\n contents: chatHistory.map((item: any) => ({\n role: item.role === \"assistant\" ? \"model\" : item.role,\n parts: [{ text: item.message }],\n })),\n });\n\n const buildNvidiaBody = (modelName: string, maxTokens: number) => ({\n model: modelName,\n temperature: 1,\n top_p: 0.95,\n max_tokens: maxTokens,\n stream: false,\n messages: [\n { role: \"system\", content: systemPrompt },\n ...chatHistory.map((item: any) => ({\n role: item.role,\n content: item.message,\n })),\n ],\n });\n\n const attempts = [\n async () => {\n const apiKey = Deno.env.get(\"GEMINI_API_KEY_1\");\n const res = await fetch(\n `https://generativelanguage.googleapis.com/v1beta/models/gemini-3.6-flash:generateContent?key=${apiKey}`,\n {\n method: \"POST\",\n headers: { \"Content-Type\": 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},\n body: JSON.stringify(buildGeminiBody()),\n },\n );\n if (!res.ok) throw new Error(`Gemini3 error: ${res.status}`);\n const json = await res.json();\n return json.candidates[0].content.parts[0].text;\n },\n async () => {\n const apiKey = Deno.env.get(\"GEMINI_API_KEY_4\");\n const res = await fetch(\n `https://generativelanguage.googleapis.com/v1beta/models/gemini-3.5-flash-lite:generateContent?key=${apiKey}`,\n {\n method: \"POST\",\n headers: { \"Content-Type\": \"application/json\" },\n body: JSON.stringify(buildGeminiBody()),\n },\n );\n if (!res.ok) throw new Error(`Gemini4 error: ${res.status}`);\n const json = await res.json();\n return json.candidates[0].content.parts[0].text;\n },\n async () => {\n const apiKey = Deno.env.get(\"NVIDIA_API_KEY\");\n const res = await fetch(\n \"https://integrate.api.nvidia.com/v1/chat/completions\",\n {\n method: \"POST\",\n headers: {\n \"Content-Type\": \"application/json\",\n \"Authorization\": `Bearer ${apiKey}`,\n },\n body: JSON.stringify(\n buildNvidiaBody(\"meta/llama-3.3-70b-instruct\", 4096),\n ),\n },\n );\n if (!res.ok) throw new Error(`Nvidia1 error: ${res.status}`);\n const json = await res.json();\n return json.choices[0].message.content.replace(\n /.*?<\\/think>/gs,\n \"\",\n ).replace(/<\\/?think>/g, \"\").trim();\n },\n async () => {\n const apiKey = Deno.env.get(\"NVIDIA_API_KEY\");\n const res = await fetch(\n \"https://integrate.api.nvidia.com/v1/chat/completions\",\n {\n method: \"POST\",\n headers: {\n \"Content-Type\": \"application/json\",\n \"Authorization\": `Bearer ${apiKey}`,\n },\n body: JSON.stringify(\n buildNvidiaBody(\"mistralai/mistral-large-2-instruct\", 4096),\n ),\n },\n );\n if (!res.ok) throw new Error(`Nvidia2 error: ${res.status}`);\n const json = await res.json();\n return json.choices[0].message.content.replace(\n /.*?<\\/think>/gs,\n \"\",\n ).replace(/<\\/?think>/g, \"\").trim();\n },\n async () => {\n const apiKey = Deno.env.get(\"NVIDIA_API_KEY\");\n const res = 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Code