docs: Update README files for v2.0.0 changes

- Remove deprecated grafana.enabled=false requirement for PostgreSQL
- Update note about Grafana compatibility with both MySQL and PostgreSQL
- Add Gateway API HTTPRoute deployment scenario documentation
- Regenerate charts/devlake/README.md with helm-docs to reflect:
  - httpRoute configuration options (9 new parameters)
  - grafana.enabled default changed to true
  - database.type default to mysql
  - database.externalPort updated to match database type

Author: fabioluciano

README.md

@@ -132,8 +132,7 @@ helm install devlake devlake/devlake \
 helm install devlake devlake/devlake \
   --set database.type=postgresql \
   --set database.password=<strong-password> \
-  --set lake.encryptionSecret.secret=$ENCRYPTION_SECRET \
-  --set grafana.enabled=false
+  --set lake.encryptionSecret.secret=$ENCRYPTION_SECRET
 ```
 
 5. **Access the application**:
@@ -261,7 +260,7 @@ database:
   database: "lake"
 ```
 
-**Important**: PostgreSQL support requires `grafana.enabled=false` unless using external Grafana configured for PostgreSQL.
+**Note**: Grafana is enabled by default (since v2.0.0) and supports both MySQL and PostgreSQL databases.
 
 ### Storage Configuration
 
@@ -367,6 +366,29 @@ helm install devlake devlake/devlake \
 
 Access at: `https://devlake.example.com`
 
+### Gateway API HTTPRoute
+
+For Kubernetes Gateway API integration:
+
+```bash
+helm install devlake devlake/devlake \
+  --set httpRoute.enabled=true \
+  --set httpRoute.gatewayName=my-gateway \
+  --set httpRoute.gatewayNamespace=gateway-system \
+  --set httpRoute.hostnames[0]=devlake.example.com \
+  --set database.password=<password> \
+  --set database.mysql.rootPassword=<root-password> \
+  --set lake.encryptionSecret.secret=$ENCRYPTION_SECRET
+```
+
+**Configuration options**:
+- `httpRoute.prefix`: Path prefix (default: `/`)
+- `httpRoute.sectionName`: Gateway listener name (optional)
+- `httpRoute.annotations`: Additional HTTPRoute annotations
+- `httpRoute.extraPaths`: Additional path-based routes
+
+Access at: `http://devlake.example.com` (HTTPS via Gateway TLS configuration)
+
 ### Production Deployment (Full Security)
 
 ```bash

charts/devlake/README.md

@@ -37,7 +37,7 @@ Apache DevLake is an open-source dev data platform that ingests, analyzes, and v
 | database.containerSecurityContext.readOnlyRootFilesystem | bool | `true` |  |
 | database.containerSecurityContext.runAsNonRoot | bool | `true` |  |
 | database.database | string | `"lake"` |  |
-| database.externalPort | int | `5432` |  |
+| database.externalPort | int | `3306` |  |
 | database.externalServer | string | `"127.0.0.1"` |  |
 | database.extraLabels | object | `{}` |  |
 | database.image.pullPolicy | string | `"IfNotPresent"` |  |
@@ -68,7 +68,7 @@ Apache DevLake is an open-source dev data platform that ingests, analyzes, and v
 | database.storage.size | string | `"50Gi"` |  |
 | database.storage.type | string | `"pvc"` |  |
 | database.tolerations | list | `[]` |  |
-| database.type | string | `"postgresql"` |  |
+| database.type | string | `"mysql"` |  |
 | database.useExternal | bool | `false` |  |
 | database.username | string | `"merico"` |  |
 | externalSecrets.enabled | bool | `false` |  |
@@ -84,7 +84,7 @@ Apache DevLake is an open-source dev data platform that ingests, analyzes, and v
 | grafana."grafana.ini".server.serve_from_subpath | string | `"true"` |  |
 | grafana.adminPassword | string | `""` |  |
 | grafana.deploymentStrategy.type | string | `"Recreate"` |  |
-| grafana.enabled | bool | `false` |  |
+| grafana.enabled | bool | `true` |  |
 | grafana.env.TZ | string | `"UTC"` |  |
 | grafana.envFromConfigMaps[0].name | string | `"devlake-db-auth-config"` |  |
 | grafana.envFromSecrets[0].name | string | `"devlake-db-auth"` |  |
@@ -98,6 +98,15 @@ Apache DevLake is an open-source dev data platform that ingests, analyzes, and v
 | grafana.persistence.size | string | `"4Gi"` |  |
 | grafana.serviceAccount.create | bool | `false` |  |
 | grafana.serviceAccount.nameOverride | string | `"{{ include \"devlake.serviceAccountName\" . }}"` |  |
+| httpRoute.annotations | object | `{}` |  |
+| httpRoute.enabled | bool | `false` |  |
+| httpRoute.extraLabels | object | `{}` |  |
+| httpRoute.extraPaths | list | `[]` |  |
+| httpRoute.gatewayName | string | `""` |  |
+| httpRoute.gatewayNamespace | string | `""` |  |
+| httpRoute.hostnames | list | `[]` |  |
+| httpRoute.prefix | string | `"/"` |  |
+| httpRoute.sectionName | string | `""` |  |
 | imageDigests.database.mysql | string | `""` |  |
 | imageDigests.database.postgresql | string | `""` |  |
 | imageDigests.grafana | string | `""` |  |
@@ -110,7 +119,6 @@ Apache DevLake is an open-source dev data platform that ingests, analyzes, and v
 | ingress.enableHttps | bool | `false` |  |
 | ingress.enabled | bool | `false` |  |
 | ingress.extraLabels | object | `{}` |  |
-| ingress.extraPaths | list | `[]` |  |
 | ingress.hostname | string | `"localhost"` |  |
 | ingress.httpPort | int | `80` |  |
 | ingress.httpsPort | int | `443` |  |