* fix(agent-hooks): route reminted pane keys to canonical identity (STA-3993)
Spawn was stripping $$<base32>:L$$ ORCA_PANE_KEY values (and the launch
token) instead of rewriting them to the metadata-proven tab:leaf key, so
OMP hooks never entered last-status.json and sleeping rows stayed working.
Alias that exact remint form onto the canonical pane so later posts still
route, and keep unmatched tokens from stamping another pane.
* fix(agent-hooks): keep reminted pane-key aliases first-pane-wins
Remint tokens have no embedded tab identity, so a later spawn that reused
the same $$ token with a different tab/leaf was overwriting the alias and
routing leftover hook posts onto the new pane. Refuse destination changes
for that form while still allowing same-pane pty id updates.
* fix(agent-hooks): keep pane alias limit import valid after refactor
* fix(agent-hooks): bound pane alias destination keys
* fix(ssh): keep pane identity env stripped when hooks disabled
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Co-authored-by: Merge Sim <sim@local>
