feat: document inbox + fix MCP pending operations user_id (#172)

* fix: always use business PSU type for bank connections

EF (sole trader) users connecting to Nordea got personal accounts
because psu_type was set to 'personal' based on entity_type. Since
gnubok is accounting software, all bank connections should use
'business' PSU type regardless of entity type.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* feat: document inbox extension with AI classification

Add invoice-inbox extension for email-based document processing with
AI-powered classification, supplier matching, and inbox management.
Includes MCP tools for document upload/listing, migration, and
supporting changes across document service, API keys, and banking.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* fix: disable invoice-inbox extension, use dynamic import in MCP server

Keep invoice-inbox out of extensions.config.json until ready for
production. MCP server now dynamically imports classifyDocument to
avoid breaking when the extension is disabled.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* fix: correct file size error message in invoice-inbox upload

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

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Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

package.json

@@ -14,6 +14,7 @@
     "test": "vitest run"
   },
   "dependencies": {
+    "@aws-sdk/client-bedrock-runtime": "^3.1022.0",
     "@hookform/resolvers": "^5.2.2",
     "@radix-ui/react-checkbox": "^1.3.3",
     "@radix-ui/react-dialog": "^1.1.15",