Fix CI: target main branch, update Go to 1.25

.github/workflows/ci.yml

@@ -2,9 +2,9 @@ name: CI
 
 on:
   push:
-    branches: [ master, develop ]
+    branches: [ main, develop ]
   pull_request:
-    branches: [ master, develop ]
+    branches: [ main, develop ]
 
 jobs:
   test:
@@ -13,7 +13,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        go: ['1.21', '1.22', '1.23']
+        go: ['1.25']
 
     steps:
     - name: Checkout code
@@ -38,7 +38,7 @@ jobs:
       run: go test -v -race -coverprofile=coverage.txt -covermode=atomic ./...
 
     - name: Upload coverage to Codecov
-      if: matrix.os == 'ubuntu-latest' && matrix.go == '1.21'
+      if: matrix.os == 'ubuntu-latest' && matrix.go == '1.25'
       uses: codecov/codecov-action@v4
       with:
         files: ./coverage.txt
@@ -60,7 +60,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v5
       with:
-        go-version: '1.21'
+        go-version: '1.25'
         cache: true
 
     - name: Build
@@ -83,7 +83,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v5
       with:
-        go-version: '1.21'
+        go-version: '1.25'
         cache: true
 
     - name: Run golangci-lint

.github/workflows/release.yml

@@ -22,7 +22,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v5
       with:
-        go-version: '1.21'
+        go-version: '1.25'
         cache: true
 
     - name: Run tests

.gitignore

@@ -280,6 +280,9 @@ TASKS.md
 docs/PRD.md
 .claude/
 
+# Built binary
+/locus
+
 # Compiled plugins or addons
 /plugins/*.so
 /addons/*.so