chore(release): 6.3.0

# [6.3.0](v6.2.0...v6.3.0) (2026-04-02)

### Bug Fixes

* apply Splunk BUILD_NUMBER cache busting to entry_page.js ([813c7c3](813c7c3))
* migrate legacy package templates to static html equivalents ([57fe298](57fe298))
* preserve app name casing in generated template asset paths ([fde15d1](fde15d1))
* replace <base href> with explicit relative paths in templates ([7a0a17a](7a0a17a))
* replace mako template bootstrapping with static runtime loader ([689de4f](689de4f))
* resolve LFS merge conflict and black formatting after develop merge ([5e75088](5e75088))
* restore i18n.js cache busting via window.$C.BUILD_NUMBER ([fd60793](fd60793))

### Features

* remove Mako and CherryPy ([b008bb7](b008bb7))
* remove Mako and CherryPy ([#1998](#1998)) ([0531328](0531328))

Author: srv-rr-github-token