feat(plant): storage/mem/chipset temps — NVMe, DIMM jc42, PCH [#344]

8 new two-layer sensors from data already in lm-sensors extends: NVMe
composite (tsys3/5), 4x jc42 DIMM temps anchored by i2c address (tsys4),
PCH (tsys3/9). GPU/SATA/DRAC-DIMM temps need host-side work — ticketed.

https://projects.knownelement.com/issues/344

packages/plant_snmp.yaml

@@ -280,6 +280,106 @@ sensor:
       {% set m = value | regex_findall('output_amps ([0-9.]+)') %}
       {{ m[0] | float if m | length > 0 }}
 
+  # --- Storage / memory / chipset temps (already in lm-sensors output) ---
+  # DIMM patterns anchor to the jc42 i2c address — a bare 'temp1:' regex
+  # would match the wrong chip (each host has several temp1 lines). The jc42
+  # ALARM flags are a limits-read artifact (limits read as 0.0C); values are good.
+  - platform: snmp
+    name: "PFV tsys3 NVMe temperature raw"
+    host: pfv-tsys3.knel.net
+    version: 2c
+    community: kn3lmgmt
+    baseoid: .1.3.6.1.4.1.8072.1.3.2.3.1.2.9.108.109.115.101.110.115.111.114.115
+    accept_errors: true
+    unique_id: pfv_tsys3_nvme_temperature_raw
+    value_template: >-
+      {% set m = value | regex_findall('Composite:\s*\+?(-?\d+\.?\d*)') %}
+      {{ m | first | float if m }}
+
+  - platform: snmp
+    name: "PFV tsys3 PCH temperature raw"
+    host: pfv-tsys3.knel.net
+    version: 2c
+    community: kn3lmgmt
+    baseoid: .1.3.6.1.4.1.8072.1.3.2.3.1.2.9.108.109.115.101.110.115.111.114.115
+    accept_errors: true
+    unique_id: pfv_tsys3_pch_temperature_raw
+    value_template: >-
+      {% set m = value | regex_findall('(?s)pch_skylake.*?temp1:\s*\+?(-?\d+\.?\d*)') %}
+      {{ m | first | float if m }}
+
+  - platform: snmp
+    name: "PFV tsys4 DIMM 18 temperature raw"
+    host: pfv-tsys4.knel.net
+    version: 2c
+    community: kn3lmgmt
+    baseoid: .1.3.6.1.4.1.8072.1.3.2.3.1.2.9.108.109.115.101.110.115.111.114.115
+    accept_errors: true
+    unique_id: pfv_tsys4_dimm_18_temperature_raw
+    value_template: >-
+      {% set m = value | regex_findall('(?s)jc42-i2c-0-18.*?temp1:\s*\+?(-?\d+\.?\d*)') %}
+      {{ m | first | float if m }}
+
+  - platform: snmp
+    name: "PFV tsys4 DIMM 19 temperature raw"
+    host: pfv-tsys4.knel.net
+    version: 2c
+    community: kn3lmgmt
+    baseoid: .1.3.6.1.4.1.8072.1.3.2.3.1.2.9.108.109.115.101.110.115.111.114.115
+    accept_errors: true
+    unique_id: pfv_tsys4_dimm_19_temperature_raw
+    value_template: >-
+      {% set m = value | regex_findall('(?s)jc42-i2c-0-19.*?temp1:\s*\+?(-?\d+\.?\d*)') %}
+      {{ m | first | float if m }}
+
+  - platform: snmp
+    name: "PFV tsys4 DIMM 1a temperature raw"
+    host: pfv-tsys4.knel.net
+    version: 2c
+    community: kn3lmgmt
+    baseoid: .1.3.6.1.4.1.8072.1.3.2.3.1.2.9.108.109.115.101.110.115.111.114.115
+    accept_errors: true
+    unique_id: pfv_tsys4_dimm_1a_temperature_raw
+    value_template: >-
+      {% set m = value | regex_findall('(?s)jc42-i2c-0-1a.*?temp1:\s*\+?(-?\d+\.?\d*)') %}
+      {{ m | first | float if m }}
+
+  - platform: snmp
+    name: "PFV tsys4 DIMM 1b temperature raw"
+    host: pfv-tsys4.knel.net
+    version: 2c
+    community: kn3lmgmt
+    baseoid: .1.3.6.1.4.1.8072.1.3.2.3.1.2.9.108.109.115.101.110.115.111.114.115
+    accept_errors: true
+    unique_id: pfv_tsys4_dimm_1b_temperature_raw
+    value_template: >-
+      {% set m = value | regex_findall('(?s)jc42-i2c-0-1b.*?temp1:\s*\+?(-?\d+\.?\d*)') %}
+      {{ m | first | float if m }}
+
+  - platform: snmp
+    name: "PFV tsys5 NVMe temperature raw"
+    host: pfv-tsys5.knel.net
+    version: 2c
+    community: kn3lmgmt
+    baseoid: .1.3.6.1.4.1.8072.1.3.2.3.1.2.9.108.109.115.101.110.115.111.114.115
+    accept_errors: true
+    unique_id: pfv_tsys5_nvme_temperature_raw
+    value_template: >-
+      {% set m = value | regex_findall('Composite:\s*\+?(-?\d+\.?\d*)') %}
+      {{ m | first | float if m }}
+
+  - platform: snmp
+    name: "PFV tsys9 PCH temperature raw"
+    host: pfv-tsys9.knel.net
+    version: 2c
+    community: kn3lmgmt
+    baseoid: .1.3.6.1.4.1.8072.1.3.2.3.1.2.9.108.109.115.101.110.115.111.114.115
+    accept_errors: true
+    unique_id: pfv_tsys9_pch_temperature_raw
+    value_template: >-
+      {% set m = value | regex_findall('(?s)pch_cometlake.*?temp1:\s*\+?(-?\d+\.?\d*)') %}
+      {{ m | first | float if m }}
+
   # --- Garage PDU energy (kWh) integrated from watts [#344] ---
   - platform: integration
     source: sensor.pfv_garage_pdu_power
@@ -485,3 +585,59 @@ template:
         state: >-
           {% set a = states('sensor.pfv_garage_pdu_output_current') | float(-1) %}
           {{ (a * 120) | round(0) if a >= 0 }}
+      - name: "PFV tsys3 NVMe temperature"
+        unique_id: pfv_tsys3_nvme_temperature
+        device_class: temperature
+        unit_of_measurement: "°F"
+        state: >-
+          {% set v = states('sensor.pfv_tsys3_nvme_temperature_raw') %}
+          {{ ((v | float * 9 / 5) + 32) | round(1) if is_number(v) else none }}
+      - name: "PFV tsys3 PCH temperature"
+        unique_id: pfv_tsys3_pch_temperature
+        device_class: temperature
+        unit_of_measurement: "°F"
+        state: >-
+          {% set v = states('sensor.pfv_tsys3_pch_temperature_raw') %}
+          {{ ((v | float * 9 / 5) + 32) | round(1) if is_number(v) else none }}
+      - name: "PFV tsys4 DIMM 18 temperature"
+        unique_id: pfv_tsys4_dimm_18_temperature
+        device_class: temperature
+        unit_of_measurement: "°F"
+        state: >-
+          {% set v = states('sensor.pfv_tsys4_dimm_18_temperature_raw') %}
+          {{ ((v | float * 9 / 5) + 32) | round(1) if is_number(v) else none }}
+      - name: "PFV tsys4 DIMM 19 temperature"
+        unique_id: pfv_tsys4_dimm_19_temperature
+        device_class: temperature
+        unit_of_measurement: "°F"
+        state: >-
+          {% set v = states('sensor.pfv_tsys4_dimm_19_temperature_raw') %}
+          {{ ((v | float * 9 / 5) + 32) | round(1) if is_number(v) else none }}
+      - name: "PFV tsys4 DIMM 1a temperature"
+        unique_id: pfv_tsys4_dimm_1a_temperature
+        device_class: temperature
+        unit_of_measurement: "°F"
+        state: >-
+          {% set v = states('sensor.pfv_tsys4_dimm_1a_temperature_raw') %}
+          {{ ((v | float * 9 / 5) + 32) | round(1) if is_number(v) else none }}
+      - name: "PFV tsys4 DIMM 1b temperature"
+        unique_id: pfv_tsys4_dimm_1b_temperature
+        device_class: temperature
+        unit_of_measurement: "°F"
+        state: >-
+          {% set v = states('sensor.pfv_tsys4_dimm_1b_temperature_raw') %}
+          {{ ((v | float * 9 / 5) + 32) | round(1) if is_number(v) else none }}
+      - name: "PFV tsys5 NVMe temperature"
+        unique_id: pfv_tsys5_nvme_temperature
+        device_class: temperature
+        unit_of_measurement: "°F"
+        state: >-
+          {% set v = states('sensor.pfv_tsys5_nvme_temperature_raw') %}
+          {{ ((v | float * 9 / 5) + 32) | round(1) if is_number(v) else none }}
+      - name: "PFV tsys9 PCH temperature"
+        unique_id: pfv_tsys9_pch_temperature
+        device_class: temperature
+        unit_of_measurement: "°F"
+        state: >-
+          {% set v = states('sensor.pfv_tsys9_pch_temperature_raw') %}
+          {{ ((v | float * 9 / 5) + 32) | round(1) if is_number(v) else none }}