* feat: improve QIF import date format selection
- Added a reusable date format auto-detection method.
- Show a live preview of the first parsed date that updates client-side
as the user changes the dropdown selection, via a new
qif-date-format Stimulus controller.
- Show an error alert and disable the submit button when no supported
date format can parse the file's dates.
* A few polishing fixes:
- Missing return on redirects
Stale REASONABLE_DATE_RANGE constant.
- Replaced the frozen constant with a class method
Bare inline rescue — Replaced Date.strptime(s, fmt) rescue nil with an explicit begin/rescue catching.
- save!(validate: false) in controller — Changed to update_column(:column_mappings, ...) in qif_category_selections_controller.rb:22, matching the pattern used in detect_and_set_qif_date_format!.
- Unescaped JSON in HTML attribute — Replaced the raw <div> with tag.div ... do block in show.html.erb:16, letting Rails properly escape the data attribute value.
* fix: address review feedback for QIF date format feature
- Add missing `return` after redirect for non-QIF imports
- Pass date_format to parse_opening_balance in will_adjust_opening_anchor?
- Return empty array when no usable date sample exists for format preview
- Add sr-only label to date format select for accessibility
- Consolidate duplicate try_parse_date/parse_qif_date into single method
- Remove misleading ambiguity scoring comment from detect_date_format
- Skip redundant sync_mappings when date format already triggered a sync
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
* Use %{product_name} interpolation in locale strings
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Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
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