chore(gitops): remove leads service — decommissioned in nxtgauge-backend-rust

Corresponding backend-rust commit c570d7d removed apps/leads entirely
(dead microservice, never reachable by the frontend). Removing the
matching Deployment/Service resources, the gateway's LEADS_SERVICE_URL
env var, and the stale release-state/patch entries so kustomize stops
tracking an image nothing builds anymore.

NOTE: leads-deployment.yaml and leads-service.yaml themselves are now
unreferenced (removed from kustomization.yaml's resources list) but
still present in base/ — file deletion was blocked by a permission
classifier in this session; safe to remove whenever convenient since
kustomize no longer includes them in the build.

apps/nxtgauge-backend-rust/base/configmap.yaml

@@ -10,7 +10,6 @@ data:
   USERS_SERVICE_URL: "http://nxtgauge-rust-users:9101"
   COMPANIES_SERVICE_URL: "http://nxtgauge-rust-companies:9102"
   JOBS_SERVICE_URL: "http://nxtgauge-rust-jobs:9103"
-  LEADS_SERVICE_URL: "http://nxtgauge-rust-leads:9118"
   JOB_SEEKERS_SERVICE_URL: "http://nxtgauge-rust-job-seekers:9104"
   CUSTOMERS_SERVICE_URL: "http://nxtgauge-rust-customers:9105"
   EMPLOYEES_SERVICE_URL: "http://nxtgauge-rust-employees:9106"

apps/nxtgauge-backend-rust/base/kustomization.yaml

@@ -14,8 +14,6 @@ resources:
   - companies-service.yaml
   - jobs-deployment.yaml
   - jobs-service.yaml
-  - leads-deployment.yaml
-  - leads-service.yaml
   - job-seekers-deployment.yaml
   - job-seekers-service.yaml
   - customers-deployment.yaml

apps/nxtgauge-backend-rust/overlays/prod/backend-release-state.tsv

@@ -2,7 +2,6 @@ gateway	sha256:119c91f3065ea13f30c39e36d2aae83ac3369b984e2382d5e4d3cbc96da77afc
 companies	sha256:fb891b63826eba46a198327684b0f4442d09e0fa103b7863e2e1c49701b2e753	1
 users	sha256:9bd6ed15f7a4e88ac2f420d782d1e676379c0d559510f2eab402e8155dff1b86	1
 jobs	sha256:cce4fdea04a9534a197634e34792e49d44b05fe90fa228569e3251cd75c774ae	1
-leads	sha256:79225f7dcc881a6c388eda4ac442eb67279f1978ad12b0e8a6516ce724f132a3	1
 job-seekers	sha256:cfaacb0907fc33593b75090f6ac6417710f941cb688736ef86168f8c4d9766ea	1
 customers	sha256:76779acccdd7b453be01547c2f31b6f0d9171f0a0dd6a7611c418e989423a2e9	1
 payments	sha256:d01c5398a0bd15f56343de4b80a760fa3314025c00e3d40b4d3cf28ce7daa645	1

apps/nxtgauge-backend-rust/overlays/prod/release-patches.yaml

@@ -48,18 +48,6 @@ spec:
 ---
 apiVersion: apps/v1
 kind: Deployment
-metadata:
-  name: nxtgauge-rust-leads
-spec:
-  replicas: 1
-  template:
-    spec:
-      containers:
-        - name: leads
-          image: ci.nxtgauge.com/ashwin/nxtgauge-rust-leads@sha256:79225f7dcc881a6c388eda4ac442eb67279f1978ad12b0e8a6516ce724f132a3
----
-apiVersion: apps/v1
-kind: Deployment
 metadata:
   name: nxtgauge-rust-job-seekers
 spec: