Fast element paths must preserve injected props and non-paragraph list semantics

Problem

A performance cut optimized the plain element path and unordered list rendering, but it cheated on semantics:

• wrapped element paths stopped carrying pathless inject.nodeProps
• unordered list visuals only survived on paragraph list blocks

That kept the perf win and broke actual rendering. Bad trade.

Symptoms

• pathless inject plugins like indent, text-align, and list-item styling could disappear once belowNodes wrappers or directional affinity were active
• heading list items with unordered listStyleType stopped showing markers

Root Cause

Two separate mistakes:

1. pipeRenderElement(...) computed injected attributes for the plain fast path, but passed raw attributes into the wrapped fallback path
2. BaseListPlugin narrowed unordered list-item injection to targetPlugins: [KEYS.p], even though list semantics in this repo apply to non-paragraph blocks too

Fix

• keep fastAttributes on the FastElementWithPath branch
• if active belowNodes wrappers exist, do not bypass pluginRenderElement(...) at all
• widen unordered list-item injection so any block with unordered listStyleType can still render as a list item

Verification

• pipeRenderElement.spec.tsx now covers:
  • pathless inject props on the wrapped directional path
  • pathless inject props when active belowNodes wrappers are present
• BaseListPlugin.spec.tsx now covers unordered list-item injection on a non-paragraph block

Prevention

• any element fast path that skips getRenderNodeProps(...) must prove it still preserves injected props on every surviving branch
• list rendering optimizations must be checked against non-paragraph list blocks, not just paragraphs