feat: brain service — self-contained second brain knowledge manager

Full backend service with:
- FastAPI REST API with CRUD, search, reprocess endpoints
- PostgreSQL + pgvector for items and semantic search
- Redis + RQ for background job processing
- Meilisearch for fast keyword/filter search
- Browserless/Chrome for JS rendering and screenshots
- OpenAI structured output for AI classification
- Local file storage with S3-ready abstraction
- Gateway auth via X-Gateway-User-Id header
- Own docker-compose stack (6 containers)

Classification: fixed folders (Home/Family/Work/Travel/Knowledge/Faith/Projects)
and fixed tags (28 predefined). AI assigns exactly 1 folder, 2-3 tags, title,
summary, and confidence score per item.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

services/fitness/frontend-legacy/src/lib/api/types.ts

@@ -15,6 +15,8 @@ export interface Food {
 	protein_per_base: number;
 	carbs_per_base: number;
 	fat_per_base: number;
+	sugar_per_base: number;
+	fiber_per_base: number;
 	status: string;
 	image_path?: string;
 	servings: FoodServing[];
@@ -55,6 +57,8 @@ export interface FoodEntry {
 	snapshot_protein: number;
 	snapshot_carbs: number;
 	snapshot_fat: number;
+	snapshot_sugar: number;
+	snapshot_fiber: number;
 	source: string;
 	entry_method: string;
 	raw_text?: string;
@@ -69,6 +73,8 @@ export interface DailyTotals {
 	total_protein: number;
 	total_carbs: number;
 	total_fat: number;
+	total_sugar: number;
+	total_fiber: number;
 	entry_count: number;
 }
 
@@ -81,6 +87,8 @@ export interface Goal {
 	protein: number;
 	carbs: number;
 	fat: number;
+	sugar: number;
+	fiber: number;
 	is_active: number;
 }
 
@@ -103,6 +111,8 @@ export interface MealTemplateItem {
 	snapshot_protein: number;
 	snapshot_carbs: number;
 	snapshot_fat: number;
+	snapshot_sugar: number;
+	snapshot_fiber: number;
 }
 
 export interface QueueItem {
@@ -126,6 +136,8 @@ export interface ExternalFood {
 	protein_per_100g: number;
 	carbs_per_100g: number;
 	fat_per_100g: number;
+	sugar_per_100g: number;
+	fiber_per_100g: number;
 	serving_size_text?: string;
 	serving_grams?: number;
 	source: string;