feat: v0.0.1 - Groq provider, timezone, journal context, test connection, task logging

Added:
- Groq AI provider (free, fast with llama-3.3-70b-versatile)
- Timezone setting (22 timezones)
- Journal context: include previous journals (3/7/14/30 days)
- Test connection button for AI providers
- Per-provider settings (API key, model, base URL remembered)
- Detailed task logging (full prompts and responses)
- Tasks page with expandable details
- Progress modal with steps and AI output details

Fixed:
- Groq API endpoint (https://api.groq.com/openai/v1/chat/completions)
- Ollama baseUrl leaking to other providers
- Database schema references
- Proper Prisma migrations (data-safe)

Changed:
- Default AI: OpenAI → Groq
- Project renamed: TotalRecall → DearDiary
- Strict anti-hallucination prompt
- Docker uses prisma migrate deploy (non-destructive)

frontend/src/lib/api.ts

@@ -184,12 +184,19 @@ export interface Task {
 }
 
 export interface Settings {
-  aiProvider: 'openai' | 'anthropic' | 'ollama' | 'lmstudio';
+  aiProvider: 'openai' | 'anthropic' | 'ollama' | 'lmstudio' | 'groq';
   aiApiKey?: string;
   aiModel: string;
   aiBaseUrl?: string;
   journalPrompt: string;
   language: string;
+  timezone: string;
+  journalContextDays: number;
+  providerSettings?: Record<string, {
+    apiKey?: string;
+    model?: string;
+    baseUrl?: string;
+  }>;
 }
 
 export const api = new ApiClient();