* feat: add editable DocTypes To Delete list with import/export
Add user control over transaction deletion with reviewable and reusable deletion templates.
- New "DocTypes To Delete" table allows users to review and customize what will be deleted before submission
- Import/Export CSV templates for reusability across environments
- Company field rule: only filter by company if field is specifically named "company", otherwise delete all records
- Child tables (istable=1) automatically excluded from selection
- "Remove Zero Counts" helper button to clean up list
- Backward compatible with existing deletion records
* refactor: improve Transaction Deletion Record code quality
- Remove unnecessary chatty comments from AI-generated code
- Add concise docstrings to all new methods
- Remove redundant @frappe.whitelist() decorators from internal methods
- Improve CSV import validation (header check, child table filtering)
- Add better error feedback with consolidated skip messages
- Reorder form fields: To Delete list now appears before Excluded list
- Add conditional visibility for Summary table (legacy records only)
- Improve architectural clarity: single API entry point per feature
Technical improvements:
- export_to_delete_template_method and import_to_delete_template_method
are now internal helpers without whitelist decorators
- CSV import now validates format and provides detailed skip reasons
- Summary table only shows for submitted records without To Delete list
- Maintains backward compatibility for existing deletion records
* fix: field order
* test: fix broken tests and add new ones
* fix: adapt create_transaction_deletion_request
* test: fix assertRaises trigger
* fix: conditionally execute Transaction Deletion pre-tasks based on selected DocTypes
* refactor: replace boolean task flags with status fields
* fix: remove UI comment
* fix: don't allow virtual doctype selection and improve protected Doctype List
* fix: replace outdated frappe.db.sql by frappe.qb
* feat: add support for multiple company fields
* fix: autofill comapny field, add docstrings, filter for company_field
* fix: add edge case handling for update_naming_series and add tests for prefix extraction
* fix: use redis for running deletion validation, check per doctype instead of company
