url: improve space in path handling

The space-segment patterns in the path regex (dotted_path_space_segments
and any_path_space_segments) greedily consume text after a space even
when we know that the text is the start of a new independent path (e.g.,
`/tmp/bar` in `/tmp/foo /tmp/bar`).

Fix: Add two negative lookaheads after the space in both patterns:
- `(?!\.{0,2}\/)` →  don't match if the next segment starts with `/`,
  `./`, or `../`
- `(?!~\/)` →  don't match if the next segment starts with `~/`

src/config/url.zig

@@ -65,11 +65,11 @@ const non_dotted_path_lookahead =
 ;
 
 const dotted_path_space_segments =
-    \\(?:(?<!:) (?!\w+:\/\/)[\w\-.~:\/?#@!$&*+;=%]*[\/.])*
+    \\(?:(?<!:) (?!\w+:\/\/)(?!\.{0,2}\/)(?!~\/)[\w\-.~:\/?#@!$&*+;=%]*[\/.])*
 ;
 
 const any_path_space_segments =
-    \\(?:(?<!:) (?!\w+:\/\/)[\w\-.~:\/?#@!$&*+;=%]+)*
+    \\(?:(?<!:) (?!\w+:\/\/)(?!\.{0,2}\/)(?!~\/)[\w\-.~:\/?#@!$&*+;=%]+)*
 ;
 
 // Branch 1: URLs with explicit schemes (http, mailto, ftp, etc.).
@@ -359,6 +359,19 @@ test "url regex" {
             .input = "/tmp/test folder/file.txt",
             .expect = "/tmp/test folder/file.txt",
         },
+        .{
+            .input = "/tmp/test  folder/file.txt",
+            .expect = "/tmp/test",
+        },
+        // Two space-separated absolute paths should match only the first
+        .{
+            .input = "/tmp/foo /tmp/bar",
+            .expect = "/tmp/foo",
+        },
+        .{
+            .input = "/tmp/foo.txt /tmp/bar.txt",
+            .expect = "/tmp/foo.txt",
+        },
         // Bare relative file paths (no ./ or ../ prefix)
         .{
             .input = "src/config/url.zig",