ignore *.db files, fix thesis identifier to use max seq instead of count, untrack .db files

TODO.md

@@ -1,35 +1,3 @@
-# Posterg TODO
-
-## Fixes
-- [x] Replace `mb_strtolower` with `strtolower` in admin/index.php (mbstring not available in php8.4-fpm)
-- [x] Replace `mb_strlen`/`mb_substr` with `strlen`/`substr` in student-preview.php (same root cause)
-- [x] Add `objet` column migration (production DB missing column → SQLSTATE[HY000]: table theses has no column named objet)
-
-## Logging
-- [x] `AppLogger` — structured JSON logger at `storage/logs/form-submissions.log`
-- [x] Admin formulaire: log submissions (success + error, IP, UA, author, post keys)
-- [x] Partage form: log submissions (success + error, share slug, IP, UA, post keys)
-
-## Migrations
-- [x] Migration runner (`app/migrations/run.php`) with tracking table `_migrations`
-- [x] `001_add_objet_column.sql` (handles duplicate-column gracefully)
-
-## Features
-- [x] Student name popover preview in /repertoire (zero per-hover requests)
-  - [x] `Database::getThesesByAuthorName()` query
-  - [x] `SearchController::handleStudentPreview()` HTMX endpoint
-  - [x] `/repertoire/student-preview` route in Dispatcher
-  - [x] `partials/student-preview.php` — iframe (single) or link list (multiple)
-  - [x] Updated `repertoire-index.php` — htmx hover attrs, `$studentWorks` map
-  - [x] Popover container + JS position/hide logic in `repertoire.php`
-  - [x] CSS in `repertoire.css`
-
-## File naming
-- [x] Analyse current file saving in admin/add.php and partage/index.php
-- [x] Implement author slug generation (`generateAuthorSlug`)
-- [x] Modify `handleThesisFiles`: folder = `theses/{year}/{year}_{AUTHOR_NAME}/`
-- [x] Modify `handleThesisFiles`: filename = `AUTHOR_NAME_sanitized_original.ext`
-- [x] Ensure uniqueness within same year/author (suffix `_1`, `_2`, etc.)
-- [x] Database path storage updated automatically via `insertThesisFile`
-- [ ] Test with actual uploads
-- [ ] Consider same changes for `handleCoverUpload` and `handleBannerUpload`
+[ ] Describe commit
+[ ] Squash/clean up if needed
+[x] Commit and finalize