feat: add external MCP server support with streamable-http proxy

Support non-containerized MCP servers via externalUrl field and add
streamable-http session management for HA MCP proof of concept.

- Add externalUrl, command, containerPort fields to McpServer schema
- Skip Docker orchestration for external servers (virtual instances)
- Implement streamable-http proxy with Mcp-Session-Id session management
- Parse SSE-framed responses from streamable-http endpoints
- Add command passthrough to Docker container creation
- Create HA MCP example manifest (examples/ha-mcp.yaml)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/db/prisma/migrations/20260222121228_add_external_url_command_port/migration.sql

@@ -0,0 +1,204 @@
+-- CreateEnum
+CREATE TYPE "Role" AS ENUM ('USER', 'ADMIN');
+
+-- CreateEnum
+CREATE TYPE "Transport" AS ENUM ('STDIO', 'SSE', 'STREAMABLE_HTTP');
+
+-- CreateEnum
+CREATE TYPE "InstanceStatus" AS ENUM ('STARTING', 'RUNNING', 'STOPPING', 'STOPPED', 'ERROR');
+
+-- CreateTable
+CREATE TABLE "User" (
+    "id" TEXT NOT NULL,
+    "email" TEXT NOT NULL,
+    "name" TEXT,
+    "passwordHash" TEXT NOT NULL,
+    "role" "Role" NOT NULL DEFAULT 'USER',
+    "version" INTEGER NOT NULL DEFAULT 1,
+    "createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "updatedAt" TIMESTAMP(3) NOT NULL,
+
+    CONSTRAINT "User_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateTable
+CREATE TABLE "Session" (
+    "id" TEXT NOT NULL,
+    "token" TEXT NOT NULL,
+    "userId" TEXT NOT NULL,
+    "expiresAt" TIMESTAMP(3) NOT NULL,
+    "createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+
+    CONSTRAINT "Session_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateTable
+CREATE TABLE "McpServer" (
+    "id" TEXT NOT NULL,
+    "name" TEXT NOT NULL,
+    "description" TEXT NOT NULL DEFAULT '',
+    "packageName" TEXT,
+    "dockerImage" TEXT,
+    "transport" "Transport" NOT NULL DEFAULT 'STDIO',
+    "repositoryUrl" TEXT,
+    "externalUrl" TEXT,
+    "command" JSONB,
+    "containerPort" INTEGER,
+    "envTemplate" JSONB NOT NULL DEFAULT '[]',
+    "version" INTEGER NOT NULL DEFAULT 1,
+    "createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "updatedAt" TIMESTAMP(3) NOT NULL,
+
+    CONSTRAINT "McpServer_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateTable
+CREATE TABLE "McpProfile" (
+    "id" TEXT NOT NULL,
+    "name" TEXT NOT NULL,
+    "serverId" TEXT NOT NULL,
+    "permissions" JSONB NOT NULL DEFAULT '[]',
+    "envOverrides" JSONB NOT NULL DEFAULT '{}',
+    "version" INTEGER NOT NULL DEFAULT 1,
+    "createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "updatedAt" TIMESTAMP(3) NOT NULL,
+
+    CONSTRAINT "McpProfile_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateTable
+CREATE TABLE "Project" (
+    "id" TEXT NOT NULL,
+    "name" TEXT NOT NULL,
+    "description" TEXT NOT NULL DEFAULT '',
+    "ownerId" TEXT NOT NULL,
+    "version" INTEGER NOT NULL DEFAULT 1,
+    "createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "updatedAt" TIMESTAMP(3) NOT NULL,
+
+    CONSTRAINT "Project_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateTable
+CREATE TABLE "ProjectMcpProfile" (
+    "id" TEXT NOT NULL,
+    "projectId" TEXT NOT NULL,
+    "profileId" TEXT NOT NULL,
+
+    CONSTRAINT "ProjectMcpProfile_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateTable
+CREATE TABLE "McpInstance" (
+    "id" TEXT NOT NULL,
+    "serverId" TEXT NOT NULL,
+    "containerId" TEXT,
+    "status" "InstanceStatus" NOT NULL DEFAULT 'STOPPED',
+    "port" INTEGER,
+    "metadata" JSONB NOT NULL DEFAULT '{}',
+    "version" INTEGER NOT NULL DEFAULT 1,
+    "createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+    "updatedAt" TIMESTAMP(3) NOT NULL,
+
+    CONSTRAINT "McpInstance_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateTable
+CREATE TABLE "AuditLog" (
+    "id" TEXT NOT NULL,
+    "userId" TEXT NOT NULL,
+    "action" TEXT NOT NULL,
+    "resource" TEXT NOT NULL,
+    "resourceId" TEXT,
+    "details" JSONB NOT NULL DEFAULT '{}',
+    "createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP,
+
+    CONSTRAINT "AuditLog_pkey" PRIMARY KEY ("id")
+);
+
+-- CreateIndex
+CREATE UNIQUE INDEX "User_email_key" ON "User"("email");
+
+-- CreateIndex
+CREATE INDEX "User_email_idx" ON "User"("email");
+
+-- CreateIndex
+CREATE UNIQUE INDEX "Session_token_key" ON "Session"("token");
+
+-- CreateIndex
+CREATE INDEX "Session_token_idx" ON "Session"("token");
+
+-- CreateIndex
+CREATE INDEX "Session_userId_idx" ON "Session"("userId");
+
+-- CreateIndex
+CREATE INDEX "Session_expiresAt_idx" ON "Session"("expiresAt");
+
+-- CreateIndex
+CREATE UNIQUE INDEX "McpServer_name_key" ON "McpServer"("name");
+
+-- CreateIndex
+CREATE INDEX "McpServer_name_idx" ON "McpServer"("name");
+
+-- CreateIndex
+CREATE INDEX "McpProfile_serverId_idx" ON "McpProfile"("serverId");
+
+-- CreateIndex
+CREATE UNIQUE INDEX "McpProfile_name_serverId_key" ON "McpProfile"("name", "serverId");
+
+-- CreateIndex
+CREATE UNIQUE INDEX "Project_name_key" ON "Project"("name");
+
+-- CreateIndex
+CREATE INDEX "Project_name_idx" ON "Project"("name");
+
+-- CreateIndex
+CREATE INDEX "Project_ownerId_idx" ON "Project"("ownerId");
+
+-- CreateIndex
+CREATE INDEX "ProjectMcpProfile_projectId_idx" ON "ProjectMcpProfile"("projectId");
+
+-- CreateIndex
+CREATE INDEX "ProjectMcpProfile_profileId_idx" ON "ProjectMcpProfile"("profileId");
+
+-- CreateIndex
+CREATE UNIQUE INDEX "ProjectMcpProfile_projectId_profileId_key" ON "ProjectMcpProfile"("projectId", "profileId");
+
+-- CreateIndex
+CREATE INDEX "McpInstance_serverId_idx" ON "McpInstance"("serverId");
+
+-- CreateIndex
+CREATE INDEX "McpInstance_status_idx" ON "McpInstance"("status");
+
+-- CreateIndex
+CREATE INDEX "AuditLog_userId_idx" ON "AuditLog"("userId");
+
+-- CreateIndex
+CREATE INDEX "AuditLog_action_idx" ON "AuditLog"("action");
+
+-- CreateIndex
+CREATE INDEX "AuditLog_resource_idx" ON "AuditLog"("resource");
+
+-- CreateIndex
+CREATE INDEX "AuditLog_createdAt_idx" ON "AuditLog"("createdAt");
+
+-- AddForeignKey
+ALTER TABLE "Session" ADD CONSTRAINT "Session_userId_fkey" FOREIGN KEY ("userId") REFERENCES "User"("id") ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE "McpProfile" ADD CONSTRAINT "McpProfile_serverId_fkey" FOREIGN KEY ("serverId") REFERENCES "McpServer"("id") ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE "Project" ADD CONSTRAINT "Project_ownerId_fkey" FOREIGN KEY ("ownerId") REFERENCES "User"("id") ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE "ProjectMcpProfile" ADD CONSTRAINT "ProjectMcpProfile_projectId_fkey" FOREIGN KEY ("projectId") REFERENCES "Project"("id") ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE "ProjectMcpProfile" ADD CONSTRAINT "ProjectMcpProfile_profileId_fkey" FOREIGN KEY ("profileId") REFERENCES "McpProfile"("id") ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE "McpInstance" ADD CONSTRAINT "McpInstance_serverId_fkey" FOREIGN KEY ("serverId") REFERENCES "McpServer"("id") ON DELETE CASCADE ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE "AuditLog" ADD CONSTRAINT "AuditLog_userId_fkey" FOREIGN KEY ("userId") REFERENCES "User"("id") ON DELETE CASCADE ON UPDATE CASCADE;

src/db/prisma/migrations/migration_lock.toml

@@ -0,0 +1,3 @@
+# Please do not edit this file manually
+# It should be added in your version-control system (e.g., Git)
+provider = "postgresql"

src/db/prisma/schema.prisma

@@ -57,6 +57,9 @@ model McpServer {
   dockerImage   String?
   transport     Transport       @default(STDIO)
   repositoryUrl String?
+  externalUrl   String?
+  command       Json?
+  containerPort Int?
   envTemplate   Json            @default("[]")
   version       Int             @default(1)
   createdAt     DateTime        @default(now())