Hint Odoo company_type, Etsy array tag refusals, weclapp customerNumber - #1569

Summary

Three tool errors from the Cloud check of 2026-11-07 (window 6 Nov 08:00 to 7 Nov 08:00 UTC) where our adapter text or error hint sent the model the wrong way:

1. Odoo company_type: Odoo saas-19.3 and later (20.0 included) no longer have company_type on res.partner. 5 workspaces failed on read, search_read, create and write. Odoo 19.0 and older still have it (52 successful creates in 10 workspaces in 14 days), so nothing is blocked before the call. The create/write wording Invalid field 'x' in 'model' and the KeyError on write got no hint at all.
2. Etsy tag limit: etsy_create_listing_draft gets Etsy's refusal as a JSON array ([{"path":"/tags","type":"too_long","message":"cannot be more than 20 characters"}]), which the Name Etsy tags over the 20-character limit when Etsy refuses them #1553 hint did not match.
3. weclapp customerNumber: sales orders and invoices have no customerNumber, also not as a filter (400 unknown property: customerNumber, 4 in 3 workspaces + 1 on invoices). The error hint already said so; the tool descriptions now say it before the first call.

Same behaviour on Cloud and self-hosted. Description-only adapter changes are applied by the catalog auto-sync at boot; no "Apply update" needed.

Changes

• error-hints.ts: new Odoo company_type hint (is_company instead), the generic Odoo field hint also matches in '<model>', the Etsy tag pattern also matches the array form.
• intl/odoo.json: field and value descriptions of read/search_read/create/write mention is_company for saas-19.3+.
• de/weclapp.json: weclapp_list_sales_orders and weclapp_list_invoices say to look the customer up with weclapp_list_customers and filter on customerId.
• error-hints.spec.ts: tests for the three cases.

Type

• Bug fix
• New feature
• Documentation
• Refactoring
• Performance improvement
• Other (describe below)

Testing

• Added/updated unit tests
• Tested manually (describe steps below)
• No tests needed (explain why)

Commands and results:

• Root: node scripts/validate-adapters.mjs --warn → 729 passed, 0 failed, 1440 warnings, none in odoo.json or weclapp.json (all existing). node scripts/regenerate-catalog.mjs → no diff. node scripts/adapter-count.mjs --check → OK (713). node scripts/generate-llms-txt.mjs --check → passes.
• packages/backend: npx jest --maxWorkers=4 src/mcp-server/error-hints.spec.ts → 58 passed. Adapter specs for odoo, weclapp and catalog → 9 suites passed; catalog-summary.spec.ts could not compile locally because my node_modules miss @types/picomatch (unrelated to this diff, CI has it).

Checklist

• My code follows the existing code style
• I have tested my changes locally
• I have updated documentation (if applicable)
• All existing tests pass (npm test)
• This PR has a descriptive title

Related Issues

Found in the daily Cloud tool-error review (2026-11-07).