release: Unify default build tags and linker flags into shared files

Move hardcoded build tags and ldflags from Makefile, Dockerfile, CI
workflows, and local build scripts into canonical files under release/:

- release/DEFAULT_BUILD_TAGS (Linux common archs, Darwin, Android)
- release/DEFAULT_BUILD_TAGS_WINDOWS (includes with_purego)
- release/DEFAULT_BUILD_TAGS_OTHERS (no with_naive_outbound)
- release/LDFLAGS (shared linker flags)

.golangci.yml

@@ -9,6 +9,11 @@ run:
     - with_utls
     - with_acme
     - with_clash_api
+    - with_tailscale
+    - with_ccm
+    - with_ocm
+    - badlinkname
+    - tfogo_checklinkname0
 linters:
   default: none
   enable: