[Projects] Add Assigned Resources to projects and project tasks

[t-prda]

Fixes AB#640497, AB#640498, AB#640501

Summary

Adds an informational Assigned Resources capability to Projects (Jobs): resources can be assigned at the project level (blank task) or to a specific posting-type project task, with multiple resources per project/task. This is generic BaseApp functionality (no Expense dependency); a downstream Expense Agent consumer will use it later.

What's included

• Data model: new Job Assigned Resource table (project + optional posting task + resource; Resource Name flowfield) and a management list page.
• UI: Assigned Resources actions (project-level on Project Card/List; task-level on Project Task List/Card, task-lines subpages and the standalone Job Task Lines page), promoted next to Planning Lines where applicable.
• Posting-only rule: task-level assignments are restricted to posting-type tasks (table OnInsert/OnModify + Job Task No. TableRelation const(Posting)); changing a task away from Posting is blocked while assignments exist; actions show a friendly message on non-posting tasks.
• Referential integrity: assignments cascade-delete with their project/task (deletion is never blocked by them).
• Copy Project Tasks: optional Copy Assigned Resources toggle; insert-if-absent (no overwrite).
• Archiving: new Job Assigned Resource Archive table; store/restore/rename in Job Archive Management; cascade on Job Archive delete; read-only archive view page with actions on the Job Archive Card/List and archived task pages. Covers both project- and task-level rows.
• Permissions updated across the Jobs permission sets.
• Tests: cascade delete (task/project), posting-only enforcement, blank field rejection, Copy (enabled/disabled/no-overwrite), archive+restore, archive rename; plus a Library - Job helper.
• Miapp: W1 changes propagated to the NA layer.

Test plan

• New/updated base-app tests in UT T Job Task Line, UT T Job, UT C Copy Job, and Job Archiving are green.

[github-actions]

Copilot PR Review

Iteration 1 · Outcome: completed

Knowledge source: https://github.com/microsoft/BCQuality@822cae1b2771ac25f665f73369f69093bd4fd630

Findings by domain

Findings split into Knowledge-backed (cite a BCQuality article) and Agent (the agent's own judgement, no matching BCQuality rule).

Domain	Findings	Knowledge-backed	Agent	Inline	Fallback
Performance	1	1	0	1	0

Totals: 1 knowledge-backed · 0 agent findings.

Orchestrator pre-filter (13 file(s) excluded)

• layer-disabled (knowledge) : 13 file(s)

_{Findings produced by the Copilot CLI agent against BCQuality at 822cae1b2771ac25f665f73369f69093bd4fd630. Reply 👎 on any inline comment to flag false positives.}