fix: replace deepseek models with Llama models for better AI analysis

- Map gpt-oss to meta-llama/llama-3.1-405b-instruct:free
- Map deepseek models to meta-llama/llama-3.3-70b-instruct:free
- Simplify weekly analysis prompts for better model compatibility
- Remove debug logging now that analysis is working
- Llama models provide detailed, intelligent pet behavior insights

Author: gitcoder89431

src/lib/stores/ruixen.ts

@@ -134,7 +134,13 @@ class Ruixen {
 	private getBackendModel(frontendModel: string): string {
 		// Map problematic models to working alternatives
 		if (frontendModel === 'openai/gpt-oss-120b:free') {
-			return 'deepseek/deepseek-r1:free';
+			return 'meta-llama/llama-3.1-405b-instruct:free';
+		}
+		if (frontendModel === 'deepseek/deepseek-chat-v3.1:free') {
+			return 'meta-llama/llama-3.3-70b-instruct:free';
+		}
+		if (frontendModel === 'deepseek/deepseek-r1:free') {
+			return 'meta-llama/llama-3.3-70b-instruct:free';
 		}
 		return frontendModel;
 	}

src/lib/utils/ai-analysis.ts

@@ -94,16 +94,20 @@ export class AIAnalyzer {
 				.map((e) => `- ${new Date(e.date as any).toLocaleDateString()}: ${e.content}`)
 				.join('\n') || 'No entries in last 7 days.';
 
-		const prompt = `Summarize the last 7 days for ${pet.name} in 4-6 concise bullet points focused on mood, activity, appetite, and any warning signs.
+		const prompt = `Analyze ${pet.name}'s journal entries from the last 7 days and provide a brief summary.
 
-STRICT RULES:
-- Use only the provided entries; do not invent stories, people, or dates.
-- No creative writing, titles, emojis, or flourishes.
-- Keep language plain and factual.
-- Use '-' bullet lines only.
+Pet: ${pet.name} (${pet.breed || pet.species || 'pet'}, ${pet.age ?? 'unknown'} years old)
 
-PET: ${pet.name} (${pet.breed || pet.species || 'pet'}, ${pet.age ?? 'unknown'}y)
-LAST 7 DAYS:\n${sevenDays}`;
+Journal entries:
+${sevenDays}
+
+Please provide 3-4 bullet points about:
+- Overall mood and behavior
+- Activity level changes
+- Eating habits
+- Any concerns or positive trends
+
+Use simple bullet points starting with '-'`;
 
 		const referer = typeof window !== 'undefined' ? window.location.origin : undefined;
 		const model = modelOverride || this.model;
@@ -119,7 +123,7 @@ LAST 7 DAYS:\n${sevenDays}`;
 					{
 						role: 'system',
 						content:
-							'You are a veterinary AI assistant. Be concise and factual; never write fiction or narrative prose. Use only provided inputs.',
+							'You are a helpful pet care assistant. Analyze the provided journal entries and give practical insights about the pet\'s wellbeing.',
 					},
 					{ role: 'user', content: prompt },
 				],