fix: include txt/pdf raw sources in queue, match dark accent to theme

- readPipeline no longer filters raw/sources to .md only; CLAUDE.md
  documents txt and pdf as valid raw source types, and hiding them from
  the queue silently was the same invisibility bug the dashboard exists
  to remove.
- Dark-mode accent now tracks the installed tesanti theme (same signal
  red, no base-color lift) instead of contradicting it; status colors
  (ok/warn/danger) keep their lifted dark values for AA contrast on
  small text, per design-system separation of status tokens from the
  brand accent.

.obsidian/plugins/webinar-dash/main.js

@@ -76,6 +76,10 @@ function parseConfig(source) {
   return cfg;
 }
 
+// Source types CLAUDE.md documents for raw/sources. Anything else in that
+// folder is not a source and stays out of the queue.
+const RAW_EXTENSIONS = new Set(["md", "txt", "pdf"]);
+
 const ICONS = {
   terminal: "M4 17l6-6-6-6M12 19h8",
   check: "M20 6 9 17l-5-5",
@@ -175,8 +179,12 @@ class WebinarDashPlugin extends PluginBase {
     const rawDir = cfg.rawDir.replace(/\/+$/, "") + "/";
     const wikiDir = cfg.wikiSourceDir.replace(/\/+$/, "") + "/";
 
+    // CLAUDE.md documents raw/sources as holding "markdown/text/pdf exports".
+    // Allow-listing only "md" would hide the others from the queue with no
+    // warning — the same silent-invisibility failure this dashboard exists to
+    // remove. Wiki source pages below stay markdown-only; those really are .md.
     const rawFiles = all
-      .filter((f) => f.path.startsWith(rawDir) && f.extension === "md")
+      .filter((f) => f.path.startsWith(rawDir) && RAW_EXTENSIONS.has(f.extension))
       .map((f) => ({ path: f.path, name: f.name, size: f.stat.size }));
 
     const pageFiles = all.filter((f) => f.path.startsWith(wikiDir) && f.extension === "md");