chore: keep real names out of code and tests

The daily-summary cleaner hard-coded two contacts' names in its opening
phrases; a pattern now strips "Today, <Name> and I discussed" for any
contact (with a test). Video path tests use a neutral folder name.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/handlers/video.rs

@@ -263,8 +263,8 @@ fn is_valid_hash(s: &str) -> bool {
 ///
 /// Normalizing to forward slashes is essential on Windows: `file_scan`
 /// stores rel_paths forward-slash regardless of OS, but a raw strip of a
-/// backslash Windows path (`Z:\...\pic\Melissa\clip.mp4`) yields
-/// `Melissa\clip.mp4`. `get_exif_batch` does an exact match with no
+/// backslash Windows path (`Z:\...\pic\album\clip.mp4`) yields
+/// `album\clip.mp4`. `get_exif_batch` does an exact match with no
 /// normalization, so the backslash form misses and the handler falls back
 /// to re-hashing the entire file on every request.
 /// Response body for `POST /video/original`.
@@ -716,19 +716,19 @@ mod tests {
     #[test]
     fn rel_path_for_lookup_normalizes_windows_separators() {
         // Windows: backslash root + backslash full path. The stored row is
-        // forward-slash (`Melissa/clip.mp4`), so without normalization the
+        // forward-slash (`album/clip.mp4`), so without normalization the
         // lookup misses and the handler re-hashes the whole file.
         assert_eq!(
-            rel_path_for_lookup(r"Z:\Media\pic\Melissa\clip.mp4", r"Z:\Media\pic"),
-            "Melissa/clip.mp4"
+            rel_path_for_lookup(r"Z:\Media\pic\album\clip.mp4", r"Z:\Media\pic"),
+            "album/clip.mp4"
         );
     }
 
     #[test]
     fn rel_path_for_lookup_handles_unix_separators() {
         assert_eq!(
-            rel_path_for_lookup("/media/pic/Melissa/clip.mp4", "/media/pic"),
-            "Melissa/clip.mp4"
+            rel_path_for_lookup("/media/pic/album/clip.mp4", "/media/pic"),
+            "album/clip.mp4"
         );
     }
 
@@ -765,8 +765,8 @@ mod tests {
         // If the root doesn't prefix the path (e.g. a stale mount), we keep
         // the whole path but still normalize separators rather than panic.
         assert_eq!(
-            rel_path_for_lookup(r"D:\other\Melissa\clip.mp4", r"Z:\Media\pic"),
-            "D:/other/Melissa/clip.mp4"
+            rel_path_for_lookup(r"D:\other\album\clip.mp4", r"Z:\Media\pic"),
+            "D:/other/album/clip.mp4"
         );
     }