a Look path can name a range, and search selects what it found

file:LINE:COL-ENDLINE:ENDCOL, with the two short forms people actually type
reading naturally: file:412:9-21 on one line, file:412-418 whole ones. Ends are
inclusive. A path feature, not a search feature — a ranged path typed in a tag
or middle-clicked out of a shell's output selects just the same; search is only
its first consumer.

The dash is the fussy part. `-` was already a file char, so a ranged word
survives click expansion whole, but a range needs a number on BOTH sides or
my-file:10, build-2 and 2026-07-30 would stop being paths. Table-driven test in
look.zig for exactly that.

Selecting goes through the cellRange/setPaneRange pair the multi-cursor work
left, and hxOff clamps both ends, so a stale range selects what still exists
rather than crashing or reaching past EOF — pinned with an 8:6-400:9 range in a
nine-line file.

Producers: / search, Grep, and five LSP sites through a new spanRow — goto,
references, rename tokens and both symbol lists were throwing away real
protocol ranges at path:line:col. Left alone deliberately: Find rows are bare
paths with nothing to span, a jump is a spot not a span, and the diagnostic and
format paths only ever have a point, where half a range would be worse than
none.

One knock-on worth knowing: n now leaves an EXPLICIT selection, so a topbar
execute chords it. grep.snap's no-match step was silently becoming
`Grep TARGET`; it runs from the leader path now, which never chords, and the
dedicated chord steps stayed where they were.

1 files changed, 13 insertions, 13 deletions

diff --git a/test/snapshots/lsp.golden b/test/snapshots/lsp.golden
index 32d5b6d0..85c5c9ce 100644
--- a/test/snapshots/lsp.golden
+++ b/test/snapshots/lsp.golden
@@ -80,7 +80,7 @@
 |
 |
 |
-== snap definition grid=120x40 cursor=10,4
+== snap definition grid=120x40 cursor=15,4
 |Kill Newcol Tutor Debug NextColor Dump Find Grep Help
 |  NOR /tmp/pardes-snap/lsp/cwd/a.zig Save Del                 NOR /tmp/pardes-snap/lsp/cwd Del
 |     1 const std = @import("std");
@@ -121,7 +121,7 @@
 |
 |
 |
-== snap hover grid=120x40 cursor=10,4
+== snap hover grid=120x40 cursor=15,4
 |Kill Newcol Tutor Debug NextColor Dump Find Grep Help
 |  NOR /tmp/pardes-snap/lsp/cwd/a.zig Save Del                 NOR /tmp/pardes-snap/lsp/cwd Del
 |     1 const std = @import("std");
@@ -162,7 +162,7 @@
 |  NOR /tmp/pardes-snap/lsp/cwd/+Hover Del
 |     1 fn helper(x: u32) u32
 |     2 (fn (u32) u32)
-== snap symbols grid=120x40 cursor=10,4
+== snap symbols grid=120x40 cursor=15,4
 |Kill Newcol Tutor Debug NextColor Dump Find Grep Help
 |  NOR /tmp/pardes-snap/lsp/cwd/a.zig Save Del                 NOR /tmp/pardes-snap/lsp/cwd Del
 |     1 const std = @import("std");
@@ -197,13 +197,13 @@
 |
 |
 |  NOR /tmp/pardes-snap/lsp/cwd/+Search Del
-|     1 /tmp/pardes-snap/lsp/cwd/a.zig:1:7 std
-|     2 /tmp/pardes-snap/lsp/cwd/a.zig:3:4 helper  fn helper(
-|     3 /tmp/pardes-snap/lsp/cwd/a.zig:7:8 main  fn main() vo
+|     1 /tmp/pardes-snap/lsp/cwd/a.zig:1:7-9 std
+|     2 /tmp/pardes-snap/lsp/cwd/a.zig:3:4-9 helper  fn helpe
+|     3 /tmp/pardes-snap/lsp/cwd/a.zig:7:8-11 main  fn main()
 |  NOR /tmp/pardes-snap/lsp/cwd/+Hover Del
 |     1 fn helper(x: u32) u32
 |     2 (fn (u32) u32)
-== snap step grid=120x40 cursor=13,2
+== snap step grid=120x40 cursor=15,2
 |Kill Newcol Tutor Debug NextColor Dump Find Grep Help
 |  NOR /tmp/pardes-snap/lsp/cwd/a.zig Save Del                 NOR /tmp/pardes-snap/lsp/cwd Del
 |     1 const std = @import("std");
@@ -238,9 +238,9 @@
 |
 |
 |  NOR /tmp/pardes-snap/lsp/cwd/+Search Del
-|     1 /tmp/pardes-snap/lsp/cwd/a.zig:1:7 std
-|     2 /tmp/pardes-snap/lsp/cwd/a.zig:3:4 helper  fn helper(
-|     3 /tmp/pardes-snap/lsp/cwd/a.zig:7:8 main  fn main() vo
+|     1 /tmp/pardes-snap/lsp/cwd/a.zig:1:7-9 std
+|     2 /tmp/pardes-snap/lsp/cwd/a.zig:3:4-9 helper  fn helpe
+|     3 /tmp/pardes-snap/lsp/cwd/a.zig:7:8-11 main  fn main()
 |  NOR /tmp/pardes-snap/lsp/cwd/+Hover Del
 |     1 fn helper(x: u32) u32
 |     2 (fn (u32) u32)
@@ -279,9 +279,9 @@
 |
 |
 |  NOR /tmp/pardes-snap/lsp/cwd/+Search Del
-|     1 /tmp/pardes-snap/lsp/cwd/a.zig:1:7 std
-|     2 /tmp/pardes-snap/lsp/cwd/a.zig:3:4 helper  fn helper(
-|     3 /tmp/pardes-snap/lsp/cwd/a.zig:7:8 main  fn main() vo
+|     1 /tmp/pardes-snap/lsp/cwd/a.zig:1:7-9 std
+|     2 /tmp/pardes-snap/lsp/cwd/a.zig:3:4-9 helper  fn helpe
+|     3 /tmp/pardes-snap/lsp/cwd/a.zig:7:8-11 main  fn main()
 |  NOR /tmp/pardes-snap/lsp/cwd/+Hover Del
 |     1 fn helper(x: u32) u32
 |     2 (fn (u32) u32)