chore: initial database schema

.gitignore

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+node_modules
+dist
+.wrangler
+.env
+.next

database/01_init.sql

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+CREATE TABLE IF NOT EXISTS posts (
+    id TEXT PRIMARY KEY,
+    anonymous_user_id TEXT NOT NULL,
+    content_type TEXT NOT NULL CHECK(content_type IN ('text', 'voice', 'photo')),
+    content_data TEXT NOT NULL,
+    emotion_tag TEXT NOT NULL,
+    created_at DATETIME DEFAULT CURRENT_TIMESTAMP NOT NULL,
+    expires_at DATETIME NOT NULL
+);
+
+CREATE INDEX IF NOT EXISTS idx_posts_anonymous_user_id ON posts (anonymous_user_id);
+CREATE INDEX IF NOT EXISTS idx_posts_expires_at ON posts (expires_at);
+
+CREATE TABLE IF NOT EXISTS holds (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    post_id TEXT NOT NULL,
+    anonymous_user_id TEXT NOT NULL,
+    created_at DATETIME DEFAULT CURRENT_TIMESTAMP NOT NULL,
+    FOREIGN KEY (post_id) REFERENCES posts(id) ON DELETE CASCADE,
+    UNIQUE(post_id, anonymous_user_id)
+);
+
+CREATE TABLE IF NOT EXISTS reports (
+    id INTEGER PRIMARY KEY AUTOINCREMENT,
+    post_id TEXT NOT NULL,
+    reporter_anonymous_user_id TEXT NOT NULL,
+    reason TEXT,
+    status TEXT NOT NULL DEFAULT 'pending' CHECK(status IN ('pending', 'reviewed')),
+    created_at DATETIME DEFAULT CURRENT_TIMESTAMP NOT NULL,
+    FOREIGN KEY (post_id) REFERENCES posts(id) ON DELETE CASCADE
+);
+
+CREATE INDEX IF NOT EXISTS idx_reports_status ON reports (status);
+
+CREATE TABLE IF NOT EXISTS post_summaries (
+    id TEXT PRIMARY KEY,
+    anonymous_user_id TEXT NOT NULL,
+    emotion_tag TEXT NOT NULL,
+    hold_count INTEGER NOT NULL,
+    dissolved_at DATETIME NOT NULL
+);
+
+CREATE INDEX IF NOT EXISTS idx_post_summaries_anonymous_user_id ON post_summaries (anonymous_user_id);
+
+CREATE TABLE IF NOT EXISTS users (
+   email TEXT PRIMARY KEY,
+   username TEXT UNIQUE,
+   fullName TEXT NOT NULL,
+   mauth_token TEXT,
+   phone TEXT,
+   citizen_id TEXT,
+   role TEXT DEFAULT 'visitor' CHECK(role IN ('visitor', 'moderator', 'admin')),
+   avatar_url TEXT,
+   bio TEXT,
+   id_document_url TEXT,
+   id_verification_status TEXT DEFAULT 'pending' CHECK(id_verification_status IN ('pending', 'verified', 'rejected')),
+   created_at DATETIME DEFAULT CURRENT_TIMESTAMP
+);
+
+CREATE TABLE IF NOT EXISTS settings (
+   key TEXT PRIMARY KEY,
+   value TEXT NOT NULL
+);
+
+INSERT INTO settings (key, value) VALUES ('site_name', 'Cloudflare D1 App');
+INSERT INTO settings (key, value) VALUES ('default_post_ttl_hours', '24');
+INSERT INTO settings (key, value) VALUES ('maintenance_mode', 'false');
+INSERT INTO settings (key, value) VALUES ('max_report_count_before_auto_hide', '5');