Feat: Backend scaffolding and local dev stack

Backend/db/embed.go

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+package db
+
+import "embed"
+
+//go:embed migrations/*.sql
+var Migrations embed.FS

Backend/db/migrations/000001_init.sql

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+-- +goose Up
+CREATE EXTENSION IF NOT EXISTS "pgcrypto";
+
+CREATE TABLE IF NOT EXISTS organizations (
+  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+  name TEXT NOT NULL,
+  slug TEXT NOT NULL UNIQUE,
+  created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+  updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE TABLE IF NOT EXISTS workspaces (
+  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+  organization_id UUID NOT NULL REFERENCES organizations(id) ON DELETE CASCADE,
+  name TEXT NOT NULL,
+  slug TEXT NOT NULL,
+  created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+  updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+  UNIQUE (organization_id, slug)
+);
+
+CREATE INDEX IF NOT EXISTS idx_workspaces_organization_id ON workspaces (organization_id);
+
+-- +goose Down
+DROP TABLE IF EXISTS workspaces;
+DROP TABLE IF EXISTS organizations;

Backend/db/queries/organizations.sql

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+-- name: ListOrganizations :many
+SELECT id, name, slug, created_at, updated_at
+FROM organizations
+ORDER BY created_at DESC;
+
+-- name: CreateOrganization :one
+INSERT INTO organizations (name, slug)
+VALUES ($1, $2)
+RETURNING id, name, slug, created_at, updated_at;
+
+-- name: ListWorkspacesByOrganization :many
+SELECT id, organization_id, name, slug, created_at, updated_at
+FROM workspaces
+WHERE organization_id = $1
+ORDER BY created_at DESC;