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Conor Luddy
5dd6a84593
Two follow-ups to #100, both found while investigating #101. 1. The shim's DEVELOPER_DIR broke every xcrun call in the same process. `common/__init__` sets DEVELOPER_DIR process-wide, and xcrun walks up from it looking for an enclosing .app bundle - a shim root named `xcode27-idb-shim` has none, so xcrun refused it outright: xcrun: error: unable to find Xcode installation from active developer path ".../xcode27-idb-shim/Contents/Developer" That broke all 22 scripts that shell out to `xcrun simctl` (screenshots, boot, io) on any Xcode 27 machine. Renaming the shim root to `Xcode27Shim.app` satisfies xcrun; idb is indifferent to the name. The pre-.app root is removed on next run. 2. A companion started before the shim stays broken for its whole lifetime - it inherits DEVELOPER_DIR once, at launch, and `idb connect` reuses the live process rather than replacing it. Scripts now retire any companion whose DEVELOPER_DIR is not the shim's. Killing the process alone is not enough: idb's registry at /tmp/idb/state still names the dead pid and its socket, so the next call dials a dead socket ("Connection refused") instead of spawning a replacement. Retired companions are evicted from the registry and their sockets unlinked, which removes the manual `pkill -f idb_companion` + `rm -f *.sock` dance from the #101 repro. Verified on Xcode 27 / iOS 27.0 / iPhone 17 Pro: shim rebuilds from scratch, xcrun and idb both work through it, a deliberately stale companion is retired and recovered from transparently, and navigator.py taps land on screen. Refs #100, #101