Initial commit: Full Crawl API implementation

crates/db/migrations/003_teams.sql

@@ -0,0 +1,21 @@
+CREATE TABLE teams (
+    id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
+    name VARCHAR(255) NOT NULL,
+    slug VARCHAR(255) UNIQUE NOT NULL,
+    owner_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE TABLE team_members (
+    id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
+    team_id UUID NOT NULL REFERENCES teams(id) ON DELETE CASCADE,
+    user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+    role VARCHAR(50) NOT NULL DEFAULT 'member',
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    UNIQUE(team_id, user_id)
+);
+
+CREATE INDEX idx_teams_owner ON teams(owner_id);
+CREATE INDEX idx_team_members_team ON team_members(team_id);
+CREATE INDEX idx_team_members_user ON team_members(user_id);