Add AI-friendly enhancements: runner capabilities, release archive, action compatibility

- Add runner capability discovery API (v2) for AI tools to query before writing workflows
- Add release archive feature with filter toggle UI
- Add GitHub Actions compatibility layer with action aliasing
- Store runner capabilities JSON from act_runner Declare calls
- Add migrations for release archive and runner capabilities fields

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

go.sum

@@ -16,8 +16,6 @@ cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2k
 cloud.google.com/go/pubsub v1.1.0/go.mod h1:EwwdRX2sKPjnvnqCa270oGRyludottCI76h+R3AArQw=
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-code.gitea.io/actions-proto-go v0.4.1 h1:l0EYhjsgpUe/1VABo2eK7zcoNX2W44WOnb0MSLrKfls=
-code.gitea.io/actions-proto-go v0.4.1/go.mod h1:mn7Wkqz6JbnTOHQpot3yDeHx+O5C9EGhMEE+htvHBas=
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 code.gitea.io/sdk/gitea v0.22.0 h1:HCKq7bX/HQ85Nw7c/HAhWgRye+vBp5nQOE8Md1+9Ef0=
@@ -31,6 +29,8 @@ dario.cat/mergo v1.0.2/go.mod h1:E/hbnu0NxMFBjpMIE34DRGLWqDy0g5FuKDhCb31ngxA=
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+git.marketally.com/gitcaddy/actions-proto-go v0.5.0 h1:D2loMnqTXiaJL6TMfOOUJz4/3Vpv0AnMDSJVuiqMNrM=
+git.marketally.com/gitcaddy/actions-proto-go v0.5.0/go.mod h1:li5RzZsj1sV8a0SXzXWsGNwv0dYw7Wj829AgloZqF5o=
 gitea.com/gitea/act v0.261.7-0.20251003180512-ac6e4b751763 h1:ohdxegvslDEllZmRNDqpKun6L4Oq81jNdEDtGgHEV2c=
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