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, 32 insertions, 32 deletions

diff --git a/test/snapshots/psearch.golden b/test/snapshots/psearch.golden
index 2bd9fc81..7456db00 100644
--- a/test/snapshots/psearch.golden
+++ b/test/snapshots/psearch.golden
@@ -88,10 +88,10 @@
 |
 |
 |  NOR /tmp/pardes-snap/psearch/cwd/+Search Del
-|     1 @p0:2:3 x MARK a
-|     2 @p0:4:3 x MARK b
-|     3 @p0:6:3 x MARK c
-== snap first grid=140x30 cursor=4,3
+|     1 @p0:2:3-6 x MARK a
+|     2 @p0:4:3-6 x MARK b
+|     3 @p0:6:3-6 x MARK c
+== snap first grid=140x30 cursor=7,3
 |Kill Newcol Tutor Debug NextColor Dump Find Grep Help
 |  NOR /tmp/pardes-snap/psearch/cwd Del
 |
@@ -119,14 +119,14 @@
 |
 |
 |  NOR /tmp/pardes-snap/psearch/cwd/+Search Del
-|     1 @p0:2:3 x MARK a
-|     2 @p0:4:3 x MARK b
-|     3 @p0:6:3 x MARK c
+|     1 @p0:2:3-6 x MARK a
+|     2 @p0:4:3-6 x MARK b
+|     3 @p0:6:3-6 x MARK c
 == style first
 |0: 0-52 #949494,#121212, 53-139 d,#121212,
 |1: 0-1 d,#626262, 2-37 #949494,#121212, 38-139 d,#121212,
 |2: 0-1 d,#444444, 2-139 #bdbdbd,#080808,
-|3: 0-1 d,#444444, 2-139 #bdbdbd,#080808,
+|3: 0-1 d,#444444, 2-3 #bdbdbd,#080808, 4-7 #d8c8a8,#4a3a1e, 8-139 #bdbdbd,#080808,
 |4: 0-1 d,#444444, 2-139 #bdbdbd,#080808,
 |5: 0-1 d,#444444, 2-139 #bdbdbd,#080808,
 |6: 0-1 d,#444444, 2-139 #bdbdbd,#080808,
@@ -151,9 +151,9 @@
 |25: 0-1 d,#444444, 2-139 #bdbdbd,#080808,
 |26: 0-1 d,#262626, 2-45 #949494,#121212, 46-139 d,#121212,
 |27: 0-1 d,#444444, 2-6 #626262,#080808, 7-139 #d8c8a8,#4a3a1e,
-|28: 0-1 d,#444444, 2-6 #626262,#080808, 7-22 #bdbdbd,#080808, 23-139 d,#080808,
-|29: 0-1 d,#121212, 2-6 #626262,#080808, 7-22 #bdbdbd,#080808, 23-139 d,#080808,
-== snap second grid=140x30 cursor=4,5
+|28: 0-1 d,#444444, 2-6 #626262,#080808, 7-24 #bdbdbd,#080808, 25-139 d,#080808,
+|29: 0-1 d,#121212, 2-6 #626262,#080808, 7-24 #bdbdbd,#080808, 25-139 d,#080808,
+== snap second grid=140x30 cursor=7,5
 |Kill Newcol Tutor Debug NextColor Dump Find Grep Help
 |  NOR /tmp/pardes-snap/psearch/cwd Del
 |
@@ -181,10 +181,10 @@
 |
 |
 |  NOR /tmp/pardes-snap/psearch/cwd/+Search Del
-|     1 @p0:2:3 x MARK a
-|     2 @p0:4:3 x MARK b
-|     3 @p0:6:3 x MARK c
-== snap back grid=140x30 cursor=4,3
+|     1 @p0:2:3-6 x MARK a
+|     2 @p0:4:3-6 x MARK b
+|     3 @p0:6:3-6 x MARK c
+== snap back grid=140x30 cursor=7,3
 |Kill Newcol Tutor Debug NextColor Dump Find Grep Help
 |  NOR /tmp/pardes-snap/psearch/cwd Del
 |
@@ -212,10 +212,10 @@
 |
 |
 |  NOR /tmp/pardes-snap/psearch/cwd/+Search Del
-|     1 @p0:2:3 x MARK a
-|     2 @p0:4:3 x MARK b
-|     3 @p0:6:3 x MARK c
-== snap nomatch grid=140x30 cursor=4,3
+|     1 @p0:2:3-6 x MARK a
+|     2 @p0:4:3-6 x MARK b
+|     3 @p0:6:3-6 x MARK c
+== snap nomatch grid=140x30 cursor=7,3
 |Kill Newcol Tutor Debug NextColor Dump Find Grep Help
 |  NOR /tmp/pardes-snap/psearch/cwd Del
 |
@@ -243,9 +243,9 @@
 |  NOR /tmp/pardes-snap/psearch/cwd/+Search Del
 |     1
 |  NOR /tmp/pardes-snap/psearch/cwd/+Search Del
-|     1 @p0:2:3 x MARK a
-|     2 @p0:4:3 x MARK b
-|     3 @p0:6:3 x MARK c
+|     1 @p0:2:3-6 x MARK a
+|     2 @p0:4:3-6 x MARK b
+|     3 @p0:6:3-6 x MARK c
 == snap ttyinert grid=140x30 cursor=4,8
 |Kill Newcol Tutor Debug NextColor Dump Find Grep Help
 |  TTY /tmp/pardes-snap/psearch/cwd Del
@@ -274,10 +274,10 @@
 |  NOR /tmp/pardes-snap/psearch/cwd/+Search Del
 |     1
 |  NOR /tmp/pardes-snap/psearch/cwd/+Search Del
-|     1 @p0:2:3 x MARK a
-|     2 @p0:4:3 x MARK b
-|     3 @p0:6:3 x MARK c
-== snap rightsearch grid=140x30 cursor=4,3
+|     1 @p0:2:3-6 x MARK a
+|     2 @p0:4:3-6 x MARK b
+|     3 @p0:6:3-6 x MARK c
+== snap rightsearch grid=140x30 cursor=7,3
 |Kill Newcol Tutor Debug NextColor Dump Find Grep Help
 |  NOR /tmp/pardes-snap/psearch/cwd Del
 |
@@ -299,12 +299,12 @@
 |
 |
 |  NOR /tmp/pardes-snap/psearch/cwd/+Search Del
-|     1 @p0:2:3 x MARK a
-|     2 @p0:4:3 x MARK b
-|     3 @p0:6:3 x MARK c
+|     1 @p0:2:3-6 x MARK a
+|     2 @p0:4:3-6 x MARK b
+|     3 @p0:6:3-6 x MARK c
 |  NOR /tmp/pardes-snap/psearch/cwd/+Search Del
 |     1
 |  NOR /tmp/pardes-snap/psearch/cwd/+Search Del
-|     1 @p0:2:3 x MARK a
-|     2 @p0:4:3 x MARK b
-|     3 @p0:6:3 x MARK c
+|     1 @p0:2:3-6 x MARK a
+|     2 @p0:4:3-6 x MARK b
+|     3 @p0:6:3-6 x MARK c