update concept/model docs

Author: Vonng

content/docs/concept/ha/failure/_index.md

@@ -1,5 +1,5 @@
 ---
-title: Parameter Tuning
+title: Failure Model
 weight: 30
 description: Detailed analysis of worst-case, best-case, and average RTO calculation logic and results across three classic failure detection/recovery paths
 icon: fa-solid fa-bomb

content/docs/concept/model/etcd.md

@@ -1,6 +1,7 @@
 ---
-title: ETCD Cluster Model
-weight: 1102
+title: E-R Model of Etcd Cluster
+linkTitle: Etcd Cluster
+weight: 40
 description: Entity-Relationship model for ETCD clusters in Pigsty, including E-R diagram, entity definitions, and naming conventions.
 icon: fa-solid fa-gears
 module: [ETCD]

content/docs/concept/model/infra.md

@@ -1,6 +1,7 @@
 ---
-title: INFRA Node Model
-weight: 1105
+title: E-R Model of Infra Cluster
+linkTitle: Infra Cluster
+weight: 10
 description: Entity-Relationship model for INFRA infrastructure nodes in Pigsty, component composition, and naming conventions.
 icon: fa-solid fa-bank
 module: [INFRA]

content/docs/concept/model/minio.md

@@ -1,6 +1,7 @@
 ---
-title: MinIO Cluster Model
-weight: 1103
+title: E-R Model of MinIO Cluster
+linkTitle: MinIO Cluster 
+weight: 50
 description: Entity-Relationship model for MinIO clusters in Pigsty, including E-R diagram, entity definitions, and naming conventions.
 icon: fa-solid fa-boxes-stacked
 module: [MINIO]

content/docs/concept/model/pgsql.md

@@ -1,6 +1,7 @@
 ---
-title: PGSQL Cluster Model
-weight: 1101
+title: E-R Model of PostgreSQL Cluster
+linkTitle: PGSQL Cluster
+weight: 20
 description: Entity-Relationship model for PostgreSQL clusters in Pigsty, including E-R diagram, entity definitions, and naming conventions.
 icon: fa-solid fa-share-nodes
 module: [PGSQL]

content/docs/concept/model/redis.md

@@ -1,6 +1,7 @@
 ---
-title: Redis Cluster Model
-weight: 1104
+title: E-R Model of Redis Cluster
+linkTitle: Redis Cluster
+weight: 60
 description: Entity-Relationship model for Redis clusters in Pigsty, including E-R diagram, entity definitions, and naming conventions.
 icon: fa-solid fa-layer-group
 module: [REDIS]