docs: add Redmine ticket references to subsystem READMEs

Each component README now links to its corresponding Redmine tickets
(closed for completed work, open for pending items) for bidirectional
traceability between code and system of record.

awx/README.md

@@ -1,5 +1,7 @@
 # AWX — tsys-awx.knel.net
 
+> **Redmine:** [#361](https://projects.knownelement.com/issues/361) (deployment, closed) · [#371](https://projects.knownelement.com/issues/371) (HTTPS/TLS, open)
+
 Ansible AWX deployment on a dedicated k3s single-node VM.
 
 **[→ Deployment Plan](DEPLOYMENT.md)** · **[→ Status](../../STATUS.md)**

dcinfra/console/README.md

@@ -1,5 +1,7 @@
 # Console Management (ser2net + conman)
 
+> **Redmine:** [#360](https://projects.knownelement.com/issues/360) (deployment, closed) · [#373](https://projects.knownelement.com/issues/373) (pfv-r2-sw fix, open)
+
 Network-accessible serial console management for all production network
 switches and routers, running on **pfv-tsys4** (storage server).
 

dcinfra/powerman/README.md

@@ -1,5 +1,7 @@
 # Powerman PDU Management
 
+> **Redmine:** [#359](https://projects.knownelement.com/issues/359) (deployment, closed) · [#374](https://projects.knownelement.com/issues/374) (outlet renaming, open)
+
 Centralized power management for the Cyclades AlterPath PM10i PDU via
 [Powerman](https://github.com/chaos/powerman), running on pfv-tsys1.
 

dcinfra/ups/README.md

@@ -1,5 +1,7 @@
 # UPS Management (NUT — Network UPS Tools)
 
+> **Redmine:** [#340](https://projects.knownelement.com/issues/340) (APC, closed) · [#372](https://projects.knownelement.com/issues/372) (Tripp Lite, open)
+
 Centralized UPS monitoring for the server room via
 [NUT](https://networkupstools.org/), running on **pfv-tsys1**. USB HID UPS
 units feed one `upsd` network server; Home Assistant polls it over Tailscale for

k8s/README.md

@@ -1,5 +1,7 @@
 # k8s/ — pfv-k8s Cluster Setup Scripts
 
+> **Redmine:** [#362](https://projects.knownelement.com/issues/362) (initial build, closed) · [#367](https://projects.knownelement.com/issues/367) (rebuild, open) · [#368](https://projects.knownelement.com/issues/368) (worker join, open)
+
 Scripts to bootstrap and manage the k3s control plane on cnode1/2/3.
 All cluster communication goes over Tailscale IPs — no LAN traffic.
 

netinfra/dns-cluster-setup/README.md

@@ -1,5 +1,7 @@
 # Technitium DNS Cluster Setup
 
+> **Redmine:** [#357](https://projects.knownelement.com/issues/357) (deployment, closed)
+
 Replicates the production Technitium DNS Server from `tailscale-router` to the
 `pfv-netinfra-01/02` pair and configures them as a primary/secondary cluster
 with automatic zone transfers.