cleanup: fix all stale references across .agents/ docs

- Rewrite AGENTS.md: DB as source of truth, MCP knowledge tools, archive refs
- Fix OIKOS.md: seeds/ paths, remove Python-era notes, update deployment status
- Fix commands.md, agent-enrollment.md: archive/knowledge/ links
- Fix all SKILL.md files: remove hosts/*.yaml refs, point to inventory.yaml
- Fix HERMES.md, schema.md, page-templates.md, llm-wiki.md: update paths
- Fix bootstrap.sh: identity check reads inventory.yaml
- Fix README.md, cutover-checklist.md: stale wiki references
- Move convert-wiki.py to archive/ (one-shot done)

.agents/skills/lifecycle-destroy-node/SKILL.md

@@ -10,7 +10,7 @@ transition: "deprecated -> destroyed"
 # Lifecycle: destroy a node
 
 **Destructive.** Requires operator approval + typed confirmation phrase
-per `oikos/policy.yaml`. Requires (ontology): backups verified, secrets
+per `seeds/policy.yaml`. Requires (ontology): backups verified, secrets
 recipients removed + re-keyed, ingress/DNS removed, archaeology entry,
 ledger entry.
 
@@ -33,7 +33,7 @@ ledger entry.
    data).
 7. `oikos/ledger.py append host:<name> destroy destructive --result ok`.
 8. Regenerate: `python3 mcp/build_host_files.py && python3
-   oikos/gen-topology.py` — the node drops out of `hosts/*.yaml` and
+   inventory.yaml` — the node drops out of `inventory.yaml` and
    appears in the topology doc's archaeology table.
 
 If the destroy fails partway (e.g. secrets revoked but pct destroy