image digest: include headings in image scan

Assumed that headings do not include images, obj_digest() looked
for images only in the non-heading branch, however, the markup
does not forbid one, and an object type left out of the scan
carries neither digest nor .ssp record, silently.

Open Issue: image_list, which drives pod bundling and the @doc_has
images count, is gathered only from para objects (and only the
first image of each), so an image in a heading or in a block body
is recorded in the abstraction but not bundled.

(assisted by Claude-Code)

1 files changed, 21 insertions, 17 deletions

diff --git a/src/sisudoc/ocda/meta/metadoc_from_src_functions.d b/src/sisudoc/ocda/meta/metadoc_from_src_functions.d
index 1bc1e81..9824d61 100644
--- a/src/sisudoc/ocda/meta/metadoc_from_src_functions.d
+++ b/src/sisudoc/ocda/meta/metadoc_from_src_functions.d
@@ -3259,30 +3259,34 @@ template docAbstractionFunctions() {
     string image_path = manifested.src.image_dir_path ~ "/";
     char[64] image_hash;
     int n = 0;
+    /+ ↓ images, scanned for in every object type: the markup does not
+       forbid an image in a heading, and an object type excluded from the
+       scan would carry neither digest nor record, silently
+    +/
+    if ((obj.text).match(rgx.inline_image)) {
+      foreach (m; (obj.text).matchAll(rgx.inline_image)) {
+        image_with_path = image_path ~ m["img"];
+        ST_file_name_hash_size_ _file_info = safeComputeHashAndSize(m["img"], image_path);
+        obj.metainfo.sha256.images ~= [_file_info];
+      }
+    }
+    char[] image_summary;
+    if (obj.metainfo.sha256.images.length > 0) {
+      foreach (i; obj.metainfo.sha256.images) {
+        image_summary ~= (i.fileMissing)
+        ? "\n     - " ~ "MISSING OR UNREADABLE" ~ " - " ~ i.fileName
+        : "\n     - " ~ i.fileHash_sha256.toHexString ~ "::" ~ i.fileSize.to!string ~ " - " ~ i.fileName;
+      }
+    }
     if (obj.metainfo.is_a == "heading") {
       obj.metainfo.sha256.summary ~=
         "•   -  " ~ obj.metainfo.sha256.text.toHexString ~ " "
         ~ obj.metainfo.ocn.to!string ~ " "
         ~ obj.metainfo.is_a ~ " "
         ~ obj.metainfo.marked_up_level ~ "~ "
-        ~ obj.text;
-        // ~ image_summary; // heading assumed not to have image CONSIDER
+        ~ obj.text
+        ~ image_summary;
     } else {
-      if ((obj.text).match(rgx.inline_image)) {
-        foreach (m; (obj.text).matchAll(rgx.inline_image)) {
-          image_with_path = image_path ~ m["img"];
-          ST_file_name_hash_size_ _file_info = safeComputeHashAndSize(m["img"], image_path);
-          obj.metainfo.sha256.images ~= [_file_info];
-        }
-      }
-      char[] image_summary;
-      if (obj.metainfo.sha256.images.length > 0) {
-        foreach (i; obj.metainfo.sha256.images) {
-          image_summary ~= (i.fileMissing)
-          ? "\n     - " ~ "MISSING OR UNREADABLE" ~ " - " ~ i.fileName
-          : "\n     - " ~ i.fileHash_sha256.toHexString ~ "::" ~ i.fileSize.to!string ~ " - " ~ i.fileName;
-        }
-      }
       obj.metainfo.sha256.summary ~=
         "    -  " ~ obj.metainfo.sha256.text.toHexString
         ~ " " ~ obj.metainfo.ocn.to!string ~ " "