Remove remaining dev files from git and add comprehensive export-ignore

- Remove .claude/skills/hindsight-docs from tracking
- Remove skills/hindsight-docs (hindsight symlink) from tracking
- Add to .gitignore + export-ignore: skills/, scratch/, workflow/, Tests/, Tools/, .claude/skills/
- Add skills/, scratch/, workflow/, Tests/, Tools/, .claude/skills/ to export-ignore

.claude/skills/hindsight-docs

@@ -1 +0,0 @@
-/mnt/c/Users/kance/Documents/GitHub/Questie-X/.agents/skills/hindsight-docs

.gitattributes

@@ -42,3 +42,9 @@ skills-lock.json export-ignore
 LICENSE.md export-ignore
 **/LICENSE.md export-ignore
 Questie-X-Turtle.toc export-ignore
+skills/ export-ignore
+scratch/ export-ignore
+workflow/ export-ignore
+Tests/ export-ignore
+Tools/ export-ignore
+.claude/skills/ export-ignore

.gitignore

@@ -45,3 +45,9 @@ __pycache__/
 Questie-X-Turtle.toc
 skills-lock.json
 .luarc.json
+skills/
+scratch/
+workflow/
+Tests/
+Tools/
+.claude/skills/

skills/hindsight-docs

@@ -1 +0,0 @@
-/mnt/c/Users/kance/Documents/GitHub/Questie-X/.agents/skills/hindsight-docs