Eagster

Results 5 issues of Eagster

There is a lint [here](https://github.com/bevyengine/bevy/blob/0ee8bf978c78d3b6922db09e044695739fb69c37/crates/bevy_render/src/render_resource/pipeline_cache.rs#L1110) that is not fulfilled. It lights up in my editor, but CI seems to have missed it.

C-Bug
D-Trivial
A-Rendering
O-MacOS
O-Web
S-Ready-For-Implementation

# Objective This is the next step for #19430 and is also convinient for #18670. For context, the way entities work on main is as a "allocate and use" system....

C-Feature
A-ECS
D-Complex
X-Controversial
S-Needs-Review

## Objective I've been deep in Bevy's entity code for a few weeks now, working on remote entity reservation. Having become pretty familiar with it, there's a few areas I...

A-ECS
C-Tracking-Issue
X-Controversial

This is both building on and an alternative to much of my better entities ideas: #18719. I was inspired from talking with Sander about flecs entities. Flecs does something special...

A-ECS
C-Tracking-Issue
X-Controversial

At a glance, the following migration guides need work: - [ ] [18319](https://github.com/bevyengine/bevy/pull/18319) - needs consolidation and more detail. - [x] [17687](https://github.com/bevyengine/bevy/pull/17687) - blank - [x] [17645](https://github.com/bevyengine/bevy/pull/17645) - remove template...

A-Migration Guides
C-Correction