88308 clean up stale or unnecessary TODOS (a: tests, team, tool, framework, cla: yes, waiting for tree to go green, tech-debt)

88309 Take DPR into account for image inversion (team, framework, cla: yes, waiting for tree to go green)

88310 Avoid retaining routes when subscriptions are cleared (framework, cla: yes, waiting for tree to go green)

88311 Roll Engine from 7dc8eba6aeaa to ae0401df460a (4 revisions) (cla: yes, waiting for tree to go green)

88317 Roll Plugins from 99c5f6139a19 to 954041d5bc76 (1 revision) (cla: yes, waiting for tree to go green)