feat(media): the verdict splits what the database alone cannot

"No row at the destination" was one number, and it conflated three different
things: a sidecar the server never indexes, a file a later pass renamed again,
and a file that never left its source — the last one being actual damage. The
runbook already named the four classes; the tool never computed them, so an
operator reading `missing from the DB: 1851` had no way to tell a booklet.pdf
from a lost album and might have run a rollback over a false alarm.

`missing` rows are now stat'd on both paths and reported as
`on disk at dst, no row names it` / `REAL — file still at src` /
`gone — at neither path`, with offenders listed in that order. A row still
naming `src` stays a separate line: that is the server's own stale pointer, a
phantom, and it costs a re-scan rather than a restore.

Two new tests (REAL, and gone-vs-sidecar) plus two existing layout assertions
loosened from line positions to content. 14/14 in tests/media_verify.bats.

tests/media_verify.bats

@@ -195,7 +195,7 @@ setup() {
         --share "$SHARE" --container /data
     [ "$status" -eq 1 ]
     [ "${lines[3]}" = "missing from the DB: 2" ]
-    [ "${lines[4]}" = "missing by extension: .log 1, .mkv 1" ]
+    [[ "$output" == *"missing by extension: .log 1, .mkv 1"* ]]
 }
 
 @test "--ignore-ext keeps a file the server never indexes out of the verdict" {
@@ -208,7 +208,7 @@ setup() {
     [ "$status" -eq 0 ]
     [ "${lines[1]}" = "landed: 1" ]
     [ "${lines[3]}" = "missing from the DB: 0" ]
-    [ "${lines[4]}" = "not indexed (extension ignored): 1" ]
+    [[ "$output" == *"not indexed (extension ignored): 1"* ]]
 }
 
 # wal_case <db> — a Jellyfin database whose NEW row lives only in the
@@ -245,3 +245,38 @@ PY
     [ "${lines[1]}" = "landed: 1" ]
     [ "${lines[3]}" = "missing from the DB: 0" ]
 }
+
+# The DB alone cannot tell a lost file from a sidecar: both are "no row at the
+# destination". The tool therefore stats the two paths and separates the classes
+# the runbook names, so an operator never reads a `.pdf` as a lost film or,
+# worse, reads a real loss as a sidecar.
+@test "a file the database does not name that still sits at src is the pass's own damage" {
+    mkdir -p "$SHARE/Movies"
+    echo film > "$SHARE/Movies/Old.mkv"
+    move_row "$SHARE/Movies/Old.mkv" "$SHARE/Movies/Old/Old.mkv"
+
+    run python3 "$VERIFY" --journal "$JOURNAL" --db-kind jellyfin --db "$JFDB" \
+        --share "$SHARE" --container /data
+    [ "$status" -eq 1 ]
+    [ "${lines[3]}" = "missing from the DB: 1" ]
+    [ "${lines[4]}" = "  on disk at dst, no row names it: 0" ]
+    [ "${lines[5]}" = "  REAL — file still at src: 1" ]
+    [ "${lines[6]}" = "  gone — at neither path: 0" ]
+    [[ "$output" == *"real: $SHARE/Movies/Old.mkv"* ]]
+}
+
+@test "a file at neither path is gone, and a file at dst the server ignores is not a loss" {
+    move_row "$SHARE/Movies/Gone.mkv" "$SHARE/Movies/Gone/Gone.mkv"
+    mkdir -p "$SHARE/Movies/Sidecar"
+    echo cover > "$SHARE/Movies/Sidecar/cover.jpg"
+    move_row "$SHARE/Movies/Album/cover.jpg" "$SHARE/Movies/Sidecar/cover.jpg"
+
+    run python3 "$VERIFY" --journal "$JOURNAL" --db-kind jellyfin --db "$JFDB" \
+        --share "$SHARE" --container /data
+    [ "$status" -eq 1 ]
+    [ "${lines[3]}" = "missing from the DB: 2" ]
+    [ "${lines[4]}" = "  on disk at dst, no row names it: 1" ]
+    [ "${lines[5]}" = "  REAL — file still at src: 0" ]
+    [ "${lines[6]}" = "  gone — at neither path: 1" ]
+    [[ "$output" == *"gone: $SHARE/Movies/Gone/Gone.mkv"* ]]
+}