Tracked changes

Every diff this fork carries ahead of Zed is one entry in deltaq/changes.toml. The daily Track changes workflow keeps the entries current; deltaq/scripts/status prints them.

# Every change this fork carries on top of upstream zed-industries/zed.
#
# Managed by deltaq/scripts/{adopt-pr,track-changes,prepare-upstream-pr}.
# Edit by hand only to fix a mistake. Field reference:
#
# [[change]]
# name = "pr-12345"            # branch is change/<name>
# kind = "upstream-pr"         # "upstream-pr": someone else's Zed PR we adopted early
#                              # "own": a DeltaQ change, PRed back to Zed when ready
# zed_pr = 12345               # Zed PR number, 0 while an own change has no PR yet
# head_sha = "abc..."          # Zed PR head (or own branch head) merged into `gpui` so far
# files = ["crates/gpui/src/window.rs"]   # paths touched, used to auto-resolve conflicts
# status = "tracking"          # tracking | merged-upstream | closed-upstream | done