Split CI into pre-commit/test/build workflows for branch protection

Branch protection on this repo will require the contexts
ci/woodpecker/pr/pre-commit, ci/woodpecker/pr/test and
ci/woodpecker/pr/build, mirroring the node-lookup workflow layout.

- Adds .woodpecker/pre-commit.yaml running pre-commit via uvx
- Adds .pre-commit-config.yaml mirroring node-lookup (vendored
  web/static assets excluded)
- Adds .woodpecker/test.yaml with vet + gofmt check + race tests
- Reworks build.yaml to compile via make build plus the existing
  buildx dry-run image check, PR events only
- Renames docker.yaml to release.yaml per node-lookup convention
  (tag-driven docker release unchanged)

.pre-commit-config.yaml

@@ -0,0 +1,19 @@
+exclude: ^web/static/
+
+repos:
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v4.6.0
+    hooks:
+      - id: trailing-whitespace
+      - id: end-of-file-fixer
+      - id: check-yaml
+      - id: check-merge-conflict
+      - id: mixed-line-ending
+        args: [--fix=lf]
+
+  - repo: https://github.com/dnephin/pre-commit-golang
+    rev: v0.5.1
+    hooks:
+      - id: go-fmt
+      - id: go-vet
+      - id: go-unit-tests

.woodpecker/build.yaml

@@ -1,13 +1,11 @@
 when:
-  - event: [pull_request, push]
+  - event: pull_request
 
 steps:
-  - name: test
+  - name: build
     image: golang:1.25
     commands:
-      - go vet ./...
-      - test -z "$(gofmt -l .)"
-      - go test -race ./...
+      - make build
     backend_options:
       kubernetes:
         serviceAccountName: default

.woodpecker/pre-commit.yaml

@@ -0,0 +1,18 @@
+when:
+  - event: pull_request
+
+steps:
+  - name: pre-commit
+    image: git.unkin.net/unkin/almalinux9-gobuilder:20260606
+    commands:
+      - uvx pre-commit run --all-files
+    backend_options:
+      kubernetes:
+        serviceAccountName: default
+        resources:
+          requests:
+            memory: 512Mi
+            cpu: 1
+          limits:
+            memory: 2Gi
+            cpu: 2

.woodpecker/test.yaml

@@ -0,0 +1,20 @@
+when:
+  - event: pull_request
+
+steps:
+  - name: test
+    image: golang:1.25
+    commands:
+      - go vet ./...
+      - test -z "$(gofmt -l .)"
+      - go test -v -race ./...
+    backend_options:
+      kubernetes:
+        serviceAccountName: default
+        resources:
+          requests:
+            memory: 512Mi
+            cpu: 1
+          limits:
+            memory: 2Gi
+            cpu: 2