refactor(kanban): fold worker/orchestrator skills into injected guidance (#50473)

The kanban-worker and kanban-orchestrator bundled skills existed only to
be force-loaded into dispatcher-spawned workers, gated by
environments:[kanban] so they wouldn't leak into normal CLI listings.
That gating was fragile (the leak that #50443 patched) and the
--skills auto-load was already best-effort — most workers ran without it
because the bundled skill isn't present in profile-scoped skills dirs.

Remove the skills entirely and promote their load-bearing content
(workspace kinds, deliverable artifacts, created-card integrity, profile
discovery) into KANBAN_GUIDANCE, which is already injected into every
kanban worker's system prompt. Net result: every worker reliably gets
the guidance, nothing can leak into a CLI/blank-slate session, and the
gating machinery is gone.

- agent/prompt_builder.py: promote the 4 load-bearing rules into KANBAN_GUIDANCE
- hermes_cli/kanban_db.py: drop --skills kanban-worker auto-injection + _kanban_worker_skill_available probe
- hermes_cli/kanban_swarm.py: drop skills=[kanban-orchestrator] on the root card
- hermes_cli/kanban.py: drop kanban-init skill seeding; fix help text
- delete skills/devops/kanban-{worker,orchestrator}
- docs: delete the two skill pages (EN+zh), fix sidebars/catalog/kanban.md/kanban-worker-lanes.md and the video-orchestrator + codex-lane references
- tests: update spawn-argv expectations; re-bound the guidance-size guard

Supersedes the skill-leak half of #50443 (credit @helix4u for flagging the area).

website/docs/user-guide/skills/optional/creative/creative-kanban-video-orchestrator.md

@@ -21,7 +21,7 @@ Plan, set up, and monitor a multi-agent video production pipeline backed by Herm
 | License | MIT |
 | Platforms | linux, macos, windows |
 | Tags | `video`, `kanban`, `multi-agent`, `orchestration`, `production-pipeline` |
-| Related skills | [`kanban-orchestrator`](/docs/user-guide/skills/bundled/devops/devops-kanban-orchestrator), [`kanban-worker`](/docs/user-guide/skills/bundled/devops/devops-kanban-worker), [`ascii-video`](/docs/user-guide/skills/bundled/creative/creative-ascii-video), [`manim-video`](/docs/user-guide/skills/bundled/creative/creative-manim-video), [`p5js`](/docs/user-guide/skills/bundled/creative/creative-p5js), [`comfyui`](/docs/user-guide/skills/bundled/creative/creative-comfyui), [`touchdesigner-mcp`](/docs/user-guide/skills/bundled/creative/creative-touchdesigner-mcp), [`blender-mcp`](/docs/user-guide/skills/optional/creative/creative-blender-mcp), [`pixel-art`](/docs/user-guide/skills/optional/creative/creative-pixel-art), [`ascii-art`](/docs/user-guide/skills/bundled/creative/creative-ascii-art), [`songwriting-and-ai-music`](/docs/user-guide/skills/bundled/creative/creative-songwriting-and-ai-music), [`heartmula`](/docs/user-guide/skills/bundled/media/media-heartmula), [`songsee`](/docs/user-guide/skills/bundled/media/media-songsee), `spotify`, [`youtube-content`](/docs/user-guide/skills/bundled/media/media-youtube-content), [`claude-design`](/docs/user-guide/skills/bundled/creative/creative-claude-design), [`excalidraw`](/docs/user-guide/skills/bundled/creative/creative-excalidraw), [`architecture-diagram`](/docs/user-guide/skills/bundled/creative/creative-architecture-diagram), [`concept-diagrams`](/docs/user-guide/skills/optional/creative/creative-concept-diagrams), [`baoyu-comic`](/docs/user-guide/skills/optional/creative/creative-baoyu-comic), [`baoyu-infographic`](/docs/user-guide/skills/bundled/creative/creative-baoyu-infographic), [`humanizer`](/docs/user-guide/skills/bundled/creative/creative-humanizer), [`gif-search`](/docs/user-guide/skills/bundled/media/media-gif-search), [`meme-generation`](/docs/user-guide/skills/optional/creative/creative-meme-generation) |
+| Related skills | [`ascii-video`](/docs/user-guide/skills/bundled/creative/creative-ascii-video), [`manim-video`](/docs/user-guide/skills/bundled/creative/creative-manim-video), [`p5js`](/docs/user-guide/skills/bundled/creative/creative-p5js), [`comfyui`](/docs/user-guide/skills/bundled/creative/creative-comfyui), [`touchdesigner-mcp`](/docs/user-guide/skills/bundled/creative/creative-touchdesigner-mcp), [`blender-mcp`](/docs/user-guide/skills/optional/creative/creative-blender-mcp), [`pixel-art`](/docs/user-guide/skills/optional/creative/creative-pixel-art), [`ascii-art`](/docs/user-guide/skills/bundled/creative/creative-ascii-art), [`songwriting-and-ai-music`](/docs/user-guide/skills/bundled/creative/creative-songwriting-and-ai-music), [`heartmula`](/docs/user-guide/skills/bundled/media/media-heartmula), [`songsee`](/docs/user-guide/skills/bundled/media/media-songsee), `spotify`, [`youtube-content`](/docs/user-guide/skills/bundled/media/media-youtube-content), [`claude-design`](/docs/user-guide/skills/bundled/creative/creative-claude-design), [`excalidraw`](/docs/user-guide/skills/bundled/creative/creative-excalidraw), [`architecture-diagram`](/docs/user-guide/skills/bundled/creative/creative-architecture-diagram), [`concept-diagrams`](/docs/user-guide/skills/optional/creative/creative-concept-diagrams), [`baoyu-comic`](/docs/user-guide/skills/optional/creative/creative-baoyu-comic), [`baoyu-infographic`](/docs/user-guide/skills/bundled/creative/creative-baoyu-infographic), [`humanizer`](/docs/user-guide/skills/bundled/creative/creative-humanizer), [`gif-search`](/docs/user-guide/skills/bundled/media/media-gif-search), [`meme-generation`](/docs/user-guide/skills/optional/creative/creative-meme-generation) |
 
 ## Reference: full SKILL.md
 
@@ -187,7 +187,7 @@ task graphs. See **[references/examples.md](https://github.com/NousResearch/herm
    file` toolset, the director's `SOUL.md` rules forbid it from executing
    work itself. It decomposes and routes only — every concrete task becomes
    a `hermes kanban create` call to a specialist profile. The
-   `kanban-orchestrator` skill spells this out further.
+   auto-injected kanban orchestration guidance spells this out further.
 
 7. **Don't over-decompose.** A 30-second product video does NOT need 20 tasks.
    Aim for the smallest task graph that still parallelizes well and exposes the