Add Project Status Updates and tentative resource allocation

[Siddhantsingh1230]

Description

This PR adds a new tab to Project Detail Page called Project Updates this tab is used to centralise Project Updates on NPMS .

Also introduces the functionality of tentative resource allocation. It adds an is_tentative checkbox to the resource allocation form. This allows users to mark an allocation as tentative.

Relevant Technical Choices

• Created Project Status Update Doctype in the NextPMS Module to store project update information.
• Created Project Comments child table Doctype to store project status comments (currently supports one-level comments).
• Created various comment components for integrating new Project Updates in NextPMS.
• Created CRUD APIs for Project Status Updates.
• Data & UI: An is_tentative boolean field was added to the Resource Allocation model, controlled by a checkbox in the user interface.
• Data Migration: A patch was implemented to migrate all existing allocations to a "Confirmed" state, ensuring data consistency.
• Backend: The backend logic was updated to correctly save and retrieve the is_tentative status when creating or editing allocations.

Testing Instructions

• Go to NPMS
• Open Projects page from sidebar
• Click on any Project
• Go to Project Updates tab
• Create / Update Project Update
• Create/delete/edit/share comment links
• verify mentioned users receive emails and desk notifications

Tentative Resource Allocation:

• Create Tentative: Check "Is Tentative", save, and verify the allocation is "Tentative".
• Create Confirmed: Leave "Is Tentative" unchecked, save, and verify the allocation is "Confirmed".
• Edit to Confirmed: Open a "Tentative" allocation, uncheck the box, save, and verify it's now "Confirmed".
• Edit to Tentative: Open a "Confirmed" allocation, check the box, save, and verify it's now "Tentative".
• Verify Migration: Run the patch and confirm in the database that all pre-existing allocations are now "Confirmed".

Additional Information:

Currently Single level comments are allowed, When Published mails are sent to all Project Users and Project Manager
Also mention emails are sent after few minutes not immediately , after going into email queue

ROLES = {
    "Projects Manager",
    "Projects User",
}

Screenshot/Screencast

Changes are tracked for this Doctype:

Single Project Update Demo:

Project.Status.Update.webm

Multiple Project Update Demo:

Multi.Project.Updates.webm

Resource Allocation Demo:

Checklist

• I have carefully reviewed the code before submitting it for review.
• This code is adequately covered by unit tests to validate its functionality.
• I have conducted thorough testing to ensure it functions as intended.
• A member of the QA team has reviewed and tested this PR (To be checked by QA or code reviewer)

Addresses: https://github.com/rtCamp/erp-rtcamp/issues/2461, https://github.com/rtCamp/erp-rtcamp/issues/2470