feat: Migrate data storage to PostgreSQL with schema setup, initialization script, and update documentation

src/storage/schema.sql

@@ -0,0 +1,81 @@
+-- Database schema for Cloud MCP Server
+-- PostgreSQL database schema
+
+-- Code Snippets table
+CREATE TABLE IF NOT EXISTS code_snippets (
+    id VARCHAR(255) PRIMARY KEY,
+    title TEXT NOT NULL,
+    code TEXT NOT NULL,
+    language VARCHAR(100) NOT NULL,
+    tags TEXT[] DEFAULT '{}',
+    category VARCHAR(100),
+    created_at TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT NOW(),
+    updated_at TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT NOW()
+);
+
+-- Notes table
+CREATE TABLE IF NOT EXISTS notes (
+    id VARCHAR(255) PRIMARY KEY,
+    title TEXT NOT NULL,
+    content TEXT NOT NULL,
+    tags TEXT[] DEFAULT '{}',
+    created_at TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT NOW(),
+    updated_at TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT NOW()
+);
+
+-- Tasks table
+CREATE TABLE IF NOT EXISTS tasks (
+    id VARCHAR(255) PRIMARY KEY,
+    title TEXT NOT NULL,
+    description TEXT,
+    completed BOOLEAN NOT NULL DEFAULT FALSE,
+    created_at TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT NOW(),
+    completed_at TIMESTAMP WITH TIME ZONE
+);
+
+-- Baby Milestones table
+CREATE TABLE IF NOT EXISTS baby_milestones (
+    id VARCHAR(255) PRIMARY KEY,
+    title TEXT NOT NULL,
+    description TEXT NOT NULL,
+    date DATE NOT NULL,
+    created_at TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT NOW()
+);
+
+-- Math Resources table
+CREATE TABLE IF NOT EXISTS math_resources (
+    id VARCHAR(255) PRIMARY KEY,
+    title TEXT NOT NULL,
+    content TEXT NOT NULL,
+    grade VARCHAR(50),
+    difficulty VARCHAR(50),
+    tags TEXT[] DEFAULT '{}',
+    created_at TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT NOW()
+);
+
+-- Game Wishlist table
+CREATE TABLE IF NOT EXISTS game_wishlist (
+    id VARCHAR(255) PRIMARY KEY,
+    game_name TEXT NOT NULL,
+    platform VARCHAR(100),
+    notes TEXT,
+    added_at TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT NOW()
+);
+
+-- Create indexes for better search performance
+CREATE INDEX IF NOT EXISTS idx_code_snippets_tags ON code_snippets USING GIN(tags);
+CREATE INDEX IF NOT EXISTS idx_code_snippets_language ON code_snippets(language);
+CREATE INDEX IF NOT EXISTS idx_code_snippets_category ON code_snippets(category);
+
+CREATE INDEX IF NOT EXISTS idx_notes_tags ON notes USING GIN(tags);
+
+CREATE INDEX IF NOT EXISTS idx_tasks_completed ON tasks(completed);
+CREATE INDEX IF NOT EXISTS idx_tasks_created_at ON tasks(created_at);
+
+CREATE INDEX IF NOT EXISTS idx_baby_milestones_date ON baby_milestones(date);
+
+CREATE INDEX IF NOT EXISTS idx_math_resources_tags ON math_resources USING GIN(tags);
+CREATE INDEX IF NOT EXISTS idx_math_resources_grade ON math_resources(grade);
+CREATE INDEX IF NOT EXISTS idx_math_resources_difficulty ON math_resources(difficulty);
+
+CREATE INDEX IF NOT EXISTS idx_game_wishlist_platform ON game_wishlist(platform);