feat: Strg+Klick auf :#id springt zur Zeile der referenzierten ID (D67)

Strg/Cmd+Klick auf eine Abhängigkeits-ID im Textfeld — auch jede ID der
Liste und die Kopf-Form #auth:#db — markiert die Zeile, die die ID vergibt;
Tastatur-Pendant Strg+Enter. Erste Vergabe gewinnt (D36/D39), unbekannte IDs
tun still nichts. Headless als depIdAt/idLine in autocomplete.js, 16 Tests;
Legenden-Zeile hint_jump in allen neun Sprachen erweitert.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

docs/examples/werkbaum.werkbaum

@@ -72,6 +72,7 @@
       - [^] #ed.docs.url: Load a document from ?sourceUrl= (S)
       - [^] #ed.docs.restore: Restore a shipped document from the menu (XS)
     - [^] #ed.jump: Jump between diagram and text (S)
+      - [x] #ed.jump.dep: Ctrl+click follows a dependency to its id (XS)
     - [^] #ed.lineno: Line numbers in the text editor (XS)  %% the warnings name them
     - [^] #ed.shortid: Type #.kc under #prod-stage, get #prod-stage.kc (XS)  %% an input aid, not notation
     - [^] #ed.depcomplete: Typing :# suggests the known ids (S)  %% arrows choose, Enter inserts
@@ -523,6 +524,11 @@
   centres the node. One gesture, both directions — and descriptions count as
   part of the node they describe.
 
+#ed.jump.dep
+  Ctrl+click (Cmd on macOS) on an id inside a dependency token like (:#target)
+  selects the line that defines the id; Ctrl+Enter at the caret does the same.
+  The first assignment wins for duplicate ids, an unknown id does nothing.
+
 #ed.lineno
   A narrow strip beside the text field showing the logical line numbers, the
   same ones the warnings name. Measured rather than calculated: a wrapped line