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/ai/daily_summary_job.rs

@@ -1,8 +1,9 @@
 use anyhow::Result;
 use chrono::{NaiveDate, Utc};
 use opentelemetry::trace::Status;
+use regex::Regex;
 use std::collections::HashMap;
-use std::sync::{Arc, Mutex};
+use std::sync::{Arc, LazyLock, Mutex};
 use tokio::time::sleep;
 use tracing_opentelemetry::OpenTelemetrySpanExt;
 
@@ -112,14 +113,20 @@ pub fn strip_summary_boilerplate(summary: &str) -> String {
         }
     }
 
+    // "Today, <contact> and I discussed …" for any contact name (one or two
+    // capitalised words), so no names are baked into the code.
+    static NAMED_OPENING: LazyLock<Regex> = LazyLock::new(|| {
+        Regex::new(
+            r"^(?:[Tt]oday,?\s+)?\p{Lu}[\p{L}'’-]*(?:\s+\p{Lu}[\p{L}'’-]*)?\s+and\s+I\s+discussed",
+        )
+        .expect("valid regex")
+    });
+    if let Some(m) = NAMED_OPENING.find(&text) {
+        text = text[m.end()..].trim_start().to_string();
+    }
+
     // Remove common opening phrases that add no semantic value
     let opening_phrases = [
-        "Today, Melissa and I discussed",
-        "Today, Amanda and I discussed",
-        "Today Melissa and I discussed",
-        "Today Amanda and I discussed",
-        "Melissa and I discussed",
-        "Amanda and I discussed",
         "Today, I discussed",
         "Today I discussed",
         "The conversation covered",
@@ -376,3 +383,24 @@ async fn generate_and_store_daily_summary(
     result?;
     Ok(())
 }
+
+#[cfg(test)]
+mod tests {
+    use super::strip_summary_boilerplate;
+
+    #[test]
+    fn strips_a_named_opening_for_any_contact() {
+        for raw in [
+            "Today, Sam and I discussed the trip.",
+            "Today Sam Lee and I discussed the trip.",
+            "Jordan and I discussed the trip.",
+        ] {
+            assert_eq!(strip_summary_boilerplate(raw), "the trip.", "{raw}");
+        }
+        assert_eq!(
+            strip_summary_boilerplate("The weather and I discussed nothing"),
+            "The weather and I discussed nothing",
+            "a lowercase second word isn't a name"
+        );
+    }
+}

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"
         );
     }