archive: remove entire archive/ directory and all references

archive/ contained the old narrative wiki (superseded by DB as source
of truth), hermes-plans, oikos-cards, ledger, secrets-issuance, and
SOPS backups — all Python-era artifacts with no ongoing value.

Updated all cross-references in:
- AGENTS.md, README.md
- .agents/operations/commands.md (point to docs/infrastructure/)
- .agents/shared/llm-wiki.md, page-templates.md
- .agents/domains/knowledge/schema.md, operations/schema.md
- .agents/skills/*/SKILL.md
- docs/infrastructure/*.md (removed archive link targets)
- docs-lint/SKILL.md known-baseline note

docs/infrastructure/backups.md

@@ -24,7 +24,7 @@ See [132-rclone](containers/132-rclone.md) for the full design.
 
 ## Legacy — restic on external drive (DISABLED 2026-04-22)
 
-Chunked monthly restic backup of `/mnt/library`'s irreplaceable subset. **Disabled 2026-04-22** as part of the [hubris crash-loop A/B test](../../sources/investigations/archive/2026-04-21-hubris-crash-loop.md).
+Chunked monthly restic backup of `/mnt/library`'s irreplaceable subset. **Disabled 2026-04-22** as part of the [investigation].
 
 ## Status
 
@@ -36,7 +36,7 @@ Chunked monthly restic backup of `/mnt/library`'s irreplaceable subset. **Disabl
 
 Fstab entry commented out. USB drive de-authorized and physically removed. `backup-library-deploy.service` left enabled (harmless webhook receiver).
 
-**Reason:** the host hang recurred 2026-04-22 18:42 after 30h despite the `cpu-epp` fix, the UAS blacklist, and mount-on-demand. User wants to confirm host stability without the drive at all (was stable 33 days before the drive arrived). See [investigation](../../sources/investigations/archive/2026-04-21-hubris-crash-loop.md).
+**Reason:** the host hang recurred 2026-04-22 18:42 after 30h despite the `cpu-epp` fix, the UAS blacklist, and mount-on-demand. User wants to confirm host stability without the drive at all (was stable 33 days before the drive arrived). See [investigation].
 
 **To re-enable:** uncomment fstab line, `systemctl enable --now` the four timers, re-attach drive.
 
@@ -111,7 +111,7 @@ Single drive. RECOVERY.md flags the 3-2-1 gap. Mitigations (second drive, cloud
 
 The `Silicon Motion Portable SSD` (vid:pid `090c:2320`) drops under sustained heavy writes through a hub chain. Bypass all hubs / use a rear motherboard USB 3 port if attaching it again.
 
-After it was first attached on 2026-04-19, hubris crashed twice in 2.5 days (46h then 12h uptime). Kernel logs ended abruptly with routine apparmor entries — no panic, OOM, or MCE — the classic hard-lock signature. Preceded by `uas_eh_abort_handler` storms and xHCI resets on port 6-1. The UAS blacklist + mount-on-demand mitigations didn't fully eliminate it (recurrence 2026-04-22), prompting drive removal as the cleaner test. See [investigation](../../sources/investigations/archive/2026-04-21-hubris-crash-loop.md).
+After it was first attached on 2026-04-19, hubris crashed twice in 2.5 days (46h then 12h uptime). Kernel logs ended abruptly with routine apparmor entries — no panic, OOM, or MCE — the classic hard-lock signature. Preceded by `uas_eh_abort_handler` storms and xHCI resets on port 6-1. The UAS blacklist + mount-on-demand mitigations didn't fully eliminate it (recurrence 2026-04-22), prompting drive removal as the cleaner test. See [investigation].
 
 ## Thermal monitoring
 
@@ -119,10 +119,10 @@ Moved out of this repo to `dtoro/claudio-monitor` on 2026-04-21 (commit `50dc213
 
 ## Related
 - [Hubris host](hosts/hubris.md)
-- ~~[claudio-bot (123)](containers/archive/123-claudio-bot.md)~~ (destroyed 2026-06-04)
+- ~~claudio-bot (123)~~ (destroyed 2026-06-04) (destroyed 2026-06-04)
 - [Monitoring](monitoring.md)
 - [Auto-deploy](auto-deploy.md)
-- [Investigation: 2026-04-21 crash loop](../../sources/investigations/archive/2026-04-21-hubris-crash-loop.md)
+- [investigation]
 
 ## Changelog
 
@@ -133,7 +133,7 @@ Off-host backup moved to a plain `rclone sync` mirror on the new [LXC 132 `rclon
 Initial documentation. Status remains DISABLED.
 
 ### 2026-04-22 — DISABLED
-Drive removed as the A/B test in the [crash investigation](../../sources/investigations/archive/2026-04-21-hubris-crash-loop.md). Timers disabled, fstab commented, drive de-authorized.
+Drive removed as the A/B test in the [investigation]. Timers disabled, fstab commented, drive de-authorized.
 
 ### 2026-04-21 — UAS blacklist + mount-on-demand shipped; root-caused host hangs to drive
 Drive identified as the source of the hangs after hubris crashed twice in 2.5 days. UAS blacklist forces BOT; helper script toggles `/sys/bus/usb/.../authorized` so the drive is de-authorized when not backing up. Recovery drill (restore 188KB PDF + hash compare) had passed earlier. Bug fixed in `backup-library.sh`: `python3 -c '…' KEY=VAL` does NOT pass env vars — env-var prefix must precede the command. Caused false-failure even after successful backups.