fix: simplify bundled runtime dependency repair (#75183)

Summary:
- Merged fix: simplify bundled runtime dependency repair after ClawSweeper review.

ClawSweeper fixups:
- Included follow-up commit: fix: verify cached bundled runtime roots
- Included follow-up commit: refactor: simplify plugin runtime startup paths
- Included follow-up commit: refactor: trim plugin startup policy helpers
- Included follow-up commit: refactor: trust package manager runtime deps materialization
- Included follow-up commit: fix: narrow channel runtime deps skip policy
- Included follow-up commit: refactor: defer startup plugin runtime deps
- Ran the ClawSweeper repair loop before final review.

Validation:
- ClawSweeper review passed for head 04dc566534.
- Required merge gates passed before the squash merge.

Prepared head SHA: 04dc566534
Review: https://github.com/openclaw/openclaw/pull/75183#issuecomment-4358383786

Co-authored-by: Peter Steinberger <steipete@gmail.com>
Co-authored-by: Shakker <shakkerdroid@gmail.com>
Co-authored-by: clawsweeper-repair <clawsweeper-repair@users.noreply.github.com>

docs/docs.json

@@ -1182,6 +1182,7 @@
                   "tools/plugin",
                   "plugins/community",
                   "plugins/bundles",
+                  "plugins/dependency-resolution",
                   "plugins/codex-harness",
                   "plugins/codex-computer-use",
                   "plugins/google-meet",