boot: argv naming nothing opens an errors pane, not a stack trace

`pardes nosuchfile` returned error.BadArgs out of nativeMain, which std prints
as `error: BadArgs` with a return trace under it — indistinguishable from a
crash, for a typo, and it left the human with no editor at all. A launch that
names something look.resolve cannot make a target of now boots one +Errors pane
filling the window, saying `file or directory not found` and the argument AS
TYPED: acme's own vocabulary for output that came from the program rather than
from a word somebody clicked, and the word rather than a resolved path because
`pardes ~/notes/tdoo.md` wants to see its own typo back.

A chdir that fails on a directory that really is one stays BadArgs. That is a
permission problem rather than a typo, and the two want different answers.

Co-Authored-By: Claude Opus 5 (1M context) <[email protected]>
Claude-Session: https://claude.ai/code/session_016Q4RATpafkwahrovHQLKRf

1 files changed, 10 insertions, 0 deletions

diff --git a/src/CHANGELOG.md b/src/CHANGELOG.md
index 66c9fb0c..4cef906d 100644
--- a/src/CHANGELOG.md
+++ b/src/CHANGELOG.md
@@ -50,6 +50,16 @@
   is one a v1 daemon panics encoding, so a mixed pair — `zig build` replacing
   the binary under a running session — meets a `Refusal.version` instead of
   losing every pane shell the daemon owns.
+- `pardes nosuchfile` opens an editor. It used to return `BadArgs` out of
+  `main`, which std prints as `error: BadArgs` with a return trace under it:
+  indistinguishable from a crash, for a typo, and it left the human with no
+  editor at all. A launch that names nothing now boots one `+Errors` pane
+  filling the window — acme's own vocabulary for output that came from the
+  program rather than from a word somebody clicked — saying `file or directory
+  not found` and the argument AS TYPED. A `chdir` that fails on a directory
+  that really is one is still `BadArgs`: that is a permission problem, not a
+  typo, and the two want different answers.
+
 - A filtered terminal costs what an unfiltered one does. `Filter`'s second
   stage asked `RGB.contrast` for every cell it painted, and that call ends in
   `std.math.pow` six times over — a libm round trip per cell, per frame, to