Move all crates to a top-level crates folder

Co-Authored-By: Max Brunsfeld <maxbrunsfeld@gmail.com>

crates/server/migrations/20210527024318_initial_schema.sql

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+CREATE TABLE IF NOT EXISTS "sessions" (
+    "id" VARCHAR NOT NULL PRIMARY KEY,
+    "expires" TIMESTAMP WITH TIME ZONE NULL,
+    "session" TEXT NOT NULL
+);
+
+CREATE TABLE IF NOT EXISTS "users" (
+    "id" SERIAL PRIMARY KEY,
+    "github_login" VARCHAR,
+    "admin" BOOLEAN
+);
+
+CREATE UNIQUE INDEX "index_users_github_login" ON "users" ("github_login");
+
+CREATE TABLE IF NOT EXISTS "signups" (
+    "id" SERIAL PRIMARY KEY,
+    "github_login" VARCHAR,
+    "email_address" VARCHAR,
+    "about" TEXT
+);
+
+INSERT INTO users (github_login, admin)
+VALUES
+    ('nathansobo', true),
+    ('maxbrunsfeld', true),
+    ('as-cii', true);

crates/server/migrations/20210607190313_create_access_tokens.sql

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+CREATE TABLE IF NOT EXISTS "access_tokens" (
+    "id" SERIAL PRIMARY KEY,
+    "user_id" INTEGER REFERENCES users (id),
+    "hash" VARCHAR(128)
+);
+
+CREATE INDEX "index_access_tokens_user_id" ON "access_tokens" ("user_id");

crates/server/migrations/20210805175147_create_chat_tables.sql

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+CREATE TABLE IF NOT EXISTS "orgs" (
+    "id" SERIAL PRIMARY KEY,
+    "name" VARCHAR NOT NULL,
+    "slug" VARCHAR NOT NULL
+);
+
+CREATE UNIQUE INDEX "index_orgs_slug" ON "orgs" ("slug");
+
+CREATE TABLE IF NOT EXISTS "org_memberships" (
+    "id" SERIAL PRIMARY KEY,
+    "org_id" INTEGER REFERENCES orgs (id) NOT NULL,
+    "user_id" INTEGER REFERENCES users (id) NOT NULL,
+    "admin" BOOLEAN NOT NULL
+);
+
+CREATE INDEX "index_org_memberships_user_id" ON "org_memberships" ("user_id");
+CREATE UNIQUE INDEX "index_org_memberships_org_id_and_user_id" ON "org_memberships" ("org_id", "user_id");
+
+CREATE TABLE IF NOT EXISTS "channels" (
+    "id" SERIAL PRIMARY KEY,
+    "owner_id" INTEGER NOT NULL,
+    "owner_is_user" BOOLEAN NOT NULL,
+    "name" VARCHAR NOT NULL
+);
+
+CREATE UNIQUE INDEX "index_channels_owner_and_name" ON "channels" ("owner_is_user", "owner_id", "name");
+
+CREATE TABLE IF NOT EXISTS "channel_memberships" (
+    "id" SERIAL PRIMARY KEY,
+    "channel_id" INTEGER REFERENCES channels (id) NOT NULL,
+    "user_id" INTEGER REFERENCES users (id) NOT NULL,
+    "admin" BOOLEAN NOT NULL
+);
+
+CREATE INDEX "index_channel_memberships_user_id" ON "channel_memberships" ("user_id");
+CREATE UNIQUE INDEX "index_channel_memberships_channel_id_and_user_id" ON "channel_memberships" ("channel_id", "user_id");
+
+CREATE TABLE IF NOT EXISTS "channel_messages" (
+    "id" SERIAL PRIMARY KEY,
+    "channel_id" INTEGER REFERENCES channels (id) NOT NULL,
+    "sender_id" INTEGER REFERENCES users (id) NOT NULL,
+    "body" TEXT NOT NULL,
+    "sent_at" TIMESTAMP
+);
+
+CREATE INDEX "index_channel_messages_channel_id" ON "channel_messages" ("channel_id");

crates/server/migrations/20210916123647_add_nonce_to_channel_messages.sql

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+ALTER TABLE "channel_messages"
+ADD "nonce" UUID NOT NULL DEFAULT gen_random_uuid();
+
+CREATE UNIQUE INDEX "index_channel_messages_nonce" ON "channel_messages" ("nonce");

crates/server/migrations/20210920192001_add_interests_to_signups.sql

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+ALTER TABLE "signups"
+  ADD "wants_releases" BOOLEAN,
+  ADD "wants_updates" BOOLEAN,
+  ADD "wants_community" BOOLEAN;