fixclean f4ce7f360d feat: implement package 1 session and validation feedback ...

- add session validation_errors bootstrap initialization

- render global flash + validation messages in header

- remove footer alert-based flash handling

- persist structured validation errors across save handlers

- mark NEXT_STEPS package 1 tasks as done

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..

delete.php

#13 räume definieren

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edit.php

#13 räume definieren

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list.php

#13 räume definieren

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save.php

feat: implement package 1 session and validation feedback

2026-02-18 09:40:59 +01:00