fix(http): support multiple simultaneous MCP clients in HTTP mode

The MCP SDK's Server allows only one initialize call per instance.
Sharing a single Server across HTTP sessions caused a HTTP 400
\"Server already initialized\" error for every client after the first.

Fix: adopt a per-session factory pattern in startHttpTransport().
Each new MCP session receives its own (Server, transport) pair.
Sessions are tracked in Map<sessionId, transport> and cleaned up
on close.

server.ts: extract createMcpServer(client) so the factory can be
passed as () => createMcpServer(client). ALL_TOOL_DEFS promoted to
module-level constant.

docs: add 7 client-guide installation guides (Claude Desktop, Claude
Code, Codex CLI, Gemini CLI, Cursor, Windsurf, HTTP Server) with
corrections from real installation tests:
- claude-code: fix --env flag order (server name must precede -e flags)
- claude-desktop: document AUTH_MODE=pac option
- codex-cli: correct \"Rust binary\" note (npm version is Node.js/JS)
- gemini-cli: add npm list -g fallback for Windows version check
- cursor: add mkdir note for missing ~/.cursor on fresh Windows install
- windsurf: add workspace-scoped .windsurf/mcp.json section
- http-server: update tool count 50 → 63"

Author: Dev Agent Amelia

dist/dataverse/dataverse-client.metadata.d.ts

@@ -37,5 +37,8 @@ export declare class DataverseMetadataClient extends DataverseActionsClient {
         indexStatus: string;
     }>>;
     updateEntityDefinition(logicalName: string, body: Record<string, unknown>): Promise<void>;
+    createAttribute(entityLogicalName: string, body: Record<string, unknown>): Promise<string>;
+    updateAttribute(entityLogicalName: string, attributeLogicalName: string, body: Record<string, unknown>): Promise<void>;
+    deleteAttribute(entityLogicalName: string, attributeLogicalName: string): Promise<void>;
 }
 //# sourceMappingURL=dataverse-client.metadata.d.ts.map

dist/dataverse/dataverse-client.metadata.d.ts.map

@@ -1,3 +1,3 @@
 import { Server } from "@modelcontextprotocol/sdk/server/index.js";
-export declare function startHttpTransport(server: Server, port: number, version: string, toolCount: number): Promise<void>;
+export declare function startHttpTransport(serverFactory: () => Server, port: number, version: string, toolCount: number): Promise<void>;
 //# sourceMappingURL=http-server.d.ts.map