Pierre Martin a2fb37e2b5 feat(02-02): implement PPID chain walk + workspace resolution ...

- ReadPPID parses PPid from /proc/PID/status
- ResolveWorkspace walks PPID chain (max 20 levels) to find terminal workspace
- BuildTerminalWorkspaceMap traverses i3 tree + X11 _NET_WM_PID
- RealX11Resolver wraps xgbutil/ewmh for production use
- Interfaces I3TreeProvider and X11PIDResolver for testability
- Fix unused imports in daemon.go (Rule 3: blocking build)

2026-03-23 17:43:58 +01:00

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