feat(graph): filter bar — path glob, tag include/exclude, depth (T-323)

Switches the controller from pql.outlinks to pql.meta (outlinks + tags in
one call per file) and strips #heading fragments from link targets, so a
heading link now connects the two notes. Adds a filter bar above the graph:
a path glob that re-queries pql on submit, a depth-from-active selector for
the local graph around the open note, and tri-state tag pills
(neutral / include / exclude). The pane draws the filtered visibleGraph.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

assets/i18n/en_us/builtin.graph.json

@@ -1,4 +1,9 @@
 {
   "tab.graph.title": { "translation": "Graph" },
-  "graph.empty": { "translation": "No linked notes in this vault." }
+  "graph.empty": { "translation": "No linked notes in this vault." },
+  "graph.empty.filtered": { "translation": "No notes match the filter." },
+  "graph.empty.nolocal": { "translation": "Open a note to see its local graph." },
+  "graph.filter.glob": { "translation": "Path glob, e.g. notes/**" },
+  "graph.filter.depth": { "translation": "Local" },
+  "graph.filter.all": { "translation": "All" }
 }

assets/i18n/nl_nl/builtin.graph.json

@@ -1,4 +1,9 @@
 {
   "tab.graph.title": { "translation": "Grafiek" },
-  "graph.empty": { "translation": "Geen gekoppelde notities in deze vault." }
+  "graph.empty": { "translation": "Geen gekoppelde notities in deze vault." },
+  "graph.empty.filtered": { "translation": "Geen notities voldoen aan het filter." },
+  "graph.empty.nolocal": { "translation": "Open een notitie om de lokale grafiek te zien." },
+  "graph.filter.glob": { "translation": "Padpatroon, bijv. notes/**" },
+  "graph.filter.depth": { "translation": "Lokaal" },
+  "graph.filter.all": { "translation": "Alles" }
 }