fix(kyberforge): fix template test docs, dangling skill ref, and README table consistency

- Rewrite assets/templates/tests/README.md with correct repo-root context and
  SKILL_NAME placeholder in bats run command (was: `bats tests/`, wrong CWD)
- Add sed substitution for tests/README.md in new-skill.sh so SKILL_NAME is
  replaced in scaffolded test docs; test added to new-skill.bats (red→green)
- Remove /write-eval reference from skill-improve SKILL.md; reword as direct
  action since the skill does not exist in the kyberforge plugin
- Remove self-referential README.md rows from skill-audit and skill-improve
  Files tables to match template and skill-write convention

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

plugins/kyberforge/skills/skill-write/assets/templates/tests/README.md

@@ -9,20 +9,23 @@ to break silently — validators, parsers, generators, anything with branching
 logic or edge cases. Test infrastructure (`.bats`, `*_test.*`, `test_*.sh`)
 belongs here, not in `scripts/`.
 
-## Test runner
+## Dependencies
 
-Tests are run with [Bats](https://bats-core.readthedocs.io) for shell scripts.
-Install support libraries under `tests/test_helper/`:
+Tests require [bats-support](https://github.com/bats-core/bats-support) and
+[bats-assert](https://github.com/bats-core/bats-assert). The test files load
+helpers from the repo root's `tests/test_helper/`.
+
+From the repo root:
 
 ```bash
 git clone https://github.com/bats-core/bats-support tests/test_helper/bats-support
 git clone https://github.com/bats-core/bats-assert tests/test_helper/bats-assert
 ```
 
-Run all tests:
+Run all tests for this skill (from the repo root):
 
 ```bash
-bats tests/
+bats <destination-dir>/SKILL_NAME/tests/
 ```
 
 ## If no tests are needed