merge dev into stage

[aditya-arcot]

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[Copilot]

Pull request overview

This PR merges dev into stage with updates to exercise naming semantics (case-insensitive uniqueness), exercise list ordering (custom vs system), and client UI changes to support viewing system exercises in a read-only dialog.

Changes:

• Make Exercise.name case-insensitive (Postgres CITEXT) and add an Alembic migration to enable the citext extension + alter the column type.
• Update exercise query ordering to group custom vs system exercises and adjust tests accordingly; update updated_at when only muscle groups change.
• Client: add “view” mode for system exercises, make table columns responsive via per-column header/cell class meta, and tweak action icons/columns.

Reviewed changes

Copilot reviewed 14 out of 14 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
server/app/models/database/exercise.py	Switch Exercise.name to CITEXT for case-insensitive behavior.
server/app/migrations/versions/2026_03_27_2337-e87490ac7ad5_change_exercise_name_to_case_insensitive.py	Create citext extension and alter exercises.name to CITEXT.
server/app/services/exercise.py	Force updated_at to change when only muscle group associations change.
server/app/services/utilities/queries.py	Change exercise ordering to group custom/system exercises.
server/app/tests/services/exercise/test_update_exercise.py	Add coverage for “only muscle groups updated” and adjust name-conflict case expectations.
server/app/tests/services/exercise/test_get_exercises.py	Update ordering assertions to expect custom-before-system grouping.
server/app/tests/services/exercise/test_create_exercise.py	Update name-conflict test to validate case-insensitive conflict.
server/app/tests/services/_utilities/queries/test_query_exercises.py	Update query ordering test to validate custom-before-system grouping.
server/app/tests/api/exercise/test_update_exercise.py	Adjust API name-conflict test for case-insensitive matching.
server/app/tests/api/exercise/test_create_exercise.py	Add API test assertion that different casing still conflicts.
client/src/components/exercises/ExercisesTable.tsx	Add view action for system exercises; responsive cell rendering; remove Updated At column.
client/src/components/exercises/ExerciseFormDialog.tsx	Add view-only mode + last-updated display; disable editing/submission in view mode.
client/src/components/data-table/DataTableViewOptions.tsx	Export column meta type and add header/cell class hooks.
client/src/components/data-table/DataTable.tsx	Apply header/cell class meta to support responsive column hiding.