feat: participation and RACI labels, written on the project page (#118)

Files changed:
- CHANGES.md
- VERSION
- instructions/gtd-weekly-review/SKILL.md
- instructions/link-taxonomy.md
- kb/entities/COLLECTION.md
- kb/gtd/COLLECTION.md
- types/project.md

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SnAJ7Z3CpVD3PRbN73QtU2

types/project.md

@@ -18,6 +18,17 @@ This instance's configuration for the `project` type: its frontmatter fields as
 requires them, and the page skeleton `wikitool new project` scaffolds. `project` is instance-owned
 end to end - it declares no `guidance:`, so this file's own prose (below) carries its authoring
 contract, the same way a type an instance invents for itself always does.
+
+<!-- wikitool:toc -->
+## Contents
+
+- [When to use](#when-to-use)
+- [When NOT to use](#when-not-to-use)
+- [Frontmatter](#frontmatter)
+- [Authoring guidance](#authoring-guidance)
+- [Template](#template)
+<!-- /wikitool:toc -->
+
 ## When to use
 
 - A committed initiative in the GTD sense: something with a goal, an end state, and open loops -
@@ -54,10 +65,12 @@ contract, the same way a type an instance invents for itself always does.
   synced (`AGENTS.md` invariant 8 - one truth about "status").
 - **`## Beteiligte` carries mentions, not links.** One to two lines per person, in prose, with
   **no `[[wikilink]]` and no page of their own.** A person earns a page only once they matter for
-  the *knowledge*, independent of this project - at that point the mention becomes an edge with a
-  participation label. This is a deliberate, named exception to `kb/CONTRACT.md` § "Every page
-  should" (link to the entities it mentions): it is held by this rule, not by a checker, so read
-  a page here with no person-links as conforming, not as incomplete.
+  the *knowledge*, independent of this project - from then on the mention keeps its line, gains a
+  `[[wikilink]]`, and this project page carries a participation edge to the person (`involves`,
+  `owned-by` - whichever `kb/gtd/COLLECTION.md` authorises). This is a deliberate, named exception
+  to `kb/CONTRACT.md` § "Every page should" (link to the entities it mentions), covering only
+  people without a page: it is held by this rule, not by a checker, so read a page here with no
+  person-links as conforming, not as incomplete.
 
 ## Template
 
@@ -81,7 +94,7 @@ TODO: Warum jetzt, warum überhaupt - der Hintergrund, der nicht aus dem Titel f
 
 ## Beteiligte
 
-TODO: Ein bis zwei Zeilen je Person - Erwähnung im Fließtext, kein Wikilink, keine eigene Seite.
+TODO: Ein bis zwei Zeilen je Person - Erwähnung im Fließtext. Ein Wikilink nur, wenn die Person eine eigene Seite hat; dann trägt diese Seite auch die Kante (`involves`/`owned-by`).
 
 ## Status