refactor(projects)!: remove is_active field and update status options

[Sudharsanan11]

Issue:
Project carries both an "Is Active" (Yes/No) select and a "Status" select, which overlap and let a project be Status = Open while Is Active = No.

Nothing in ERPNext reads Project.is_active: it is never written by any code path, it does not filter the Project link search (erpnext/controllers/queries.py, get_project_name), and it does not block tasks, timesheets or billing. The only places it appears are the list view fields and the Project Summary report filter, so marking a project inactive changes nothing except that label.

Proposal: drop the is_active field and add "Disabled" to the Status options, so a single field expresses the project state, with a patch migrating is_active = "No" projects that are Open or On hold to status "Disabled".

Before:

After:

Backport Needed for v15 & v16

[Sudharsanan11]

Raising this PR on behalf of @Poovetha

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[greptile-apps]

Confidence Score: 5/5

The PR appears safe to merge.

No blocking failure remains; the previously reported explicit transaction commit is absent, and the patch runner retains atomic commit and rollback ownership.

_{Reviews (3): Last reviewed commit: "Merge branch 'develop' into disabled__st..." | Re-trigger Greptile}