Add runner capabilities display to web UI

- Display capabilities on runner edit page (OS, Docker, shells, tools)
- Add locale translations for capability labels
- Parse and render CapabilitiesJSON from runner model
- Update actions-proto-go to v0.5.2

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

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

go.mod

@@ -10,7 +10,7 @@ toolchain go1.25.5
 godebug x509negativeserial=1
 
 require (
-	code.gitea.io/actions-proto-go v0.4.1
+	code.gitea.io/actions-proto-go v0.5.0
 	code.gitea.io/sdk/gitea v0.22.0
 	codeberg.org/gusted/mcaptcha v0.0.0-20220723083913-4f3072e1d570
 	connectrpc.com/connect v1.18.1
@@ -313,7 +313,7 @@ replace github.com/nektos/act => gitea.com/gitea/act v0.261.7-0.20251003180512-a
 replace git.sr.ht/~mariusor/go-xsd-duration => gitea.com/gitea/go-xsd-duration v0.0.0-20220703122237-02e73435a078
 
 // Use GitCaddy fork with capability support
-replace code.gitea.io/actions-proto-go => git.marketally.com/gitcaddy/actions-proto-go v0.5.1
+replace code.gitea.io/actions-proto-go => git.marketally.com/gitcaddy/actions-proto-go v0.5.2
 
 exclude github.com/gofrs/uuid v3.2.0+incompatible
 

go.sum

@@ -29,8 +29,8 @@ dario.cat/mergo v1.0.2/go.mod h1:E/hbnu0NxMFBjpMIE34DRGLWqDy0g5FuKDhCb31ngxA=
 dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
 filippo.io/edwards25519 v1.1.0 h1:FNf4tywRC1HmFuKW5xopWpigGjJKiJSV0Cqo0cJWDaA=
 filippo.io/edwards25519 v1.1.0/go.mod h1:BxyFTGdWcka3PhytdK4V28tE5sGfRvvvRV7EaN4VDT4=
-git.marketally.com/gitcaddy/actions-proto-go v0.5.0 h1:D2loMnqTXiaJL6TMfOOUJz4/3Vpv0AnMDSJVuiqMNrM=
+git.marketally.com/gitcaddy/actions-proto-go v0.5.2 h1:+0tDJeyduhxpYrBNScN8w5din/0zJ/KtAh/Eo6mE9QE=
-git.marketally.com/gitcaddy/actions-proto-go v0.5.0/go.mod h1:li5RzZsj1sV8a0SXzXWsGNwv0dYw7Wj829AgloZqF5o=
+git.marketally.com/gitcaddy/actions-proto-go v0.5.2/go.mod h1:mn7Wkqz6JbnTOHQpot3yDeHx+O5C9EGhMEE+htvHBas=
 gitea.com/gitea/act v0.261.7-0.20251003180512-ac6e4b751763 h1:ohdxegvslDEllZmRNDqpKun6L4Oq81jNdEDtGgHEV2c=
 gitea.com/gitea/act v0.261.7-0.20251003180512-ac6e4b751763/go.mod h1:Pg5C9kQY1CEA3QjthjhlrqOC/QOT5NyWNjOjRHw23Ok=
 gitea.com/gitea/go-xsd-duration v0.0.0-20220703122237-02e73435a078 h1:BAFmdZpRW7zMQZQDClaCWobRj9uL1MR3MzpCVJvc5s4=

options/locale/locale_en-US.json

@@ -3696,6 +3696,13 @@
   "actions.runners.reset_registration_token": "Reset registration token",
   "actions.runners.reset_registration_token_confirm": "Would you like to invalidate the current token and generate a new one?",
   "actions.runners.reset_registration_token_success": "Runner registration token reset successfully",
+  "actions.runners.capabilities": "Capabilities",
+  "actions.runners.capabilities.os": "OS/Arch",
+  "actions.runners.capabilities.docker": "Docker",
+  "actions.runners.capabilities.shells": "Shells",
+  "actions.runners.capabilities.tools": "Tools",
+  "actions.runners.capabilities.limitations": "Limitations",
+  "actions.runners.capabilities.available": "Available",
   "actions.runs.all_workflows": "All Workflows",
   "actions.runs.commit": "Commit",
   "actions.runs.scheduled": "Scheduled",

routers/web/shared/actions/runners.go

@@ -4,6 +4,7 @@
 package actions
 
 import (
+	"encoding/json"
 	"errors"
 	"net/http"
 	"net/url"
@@ -12,6 +13,7 @@ import (
 	"code.gitea.io/gitea/models/db"
 	"code.gitea.io/gitea/modules/log"
 	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/structs"
 	"code.gitea.io/gitea/modules/templates"
 	"code.gitea.io/gitea/modules/util"
 	"code.gitea.io/gitea/modules/web"
@@ -199,6 +201,14 @@ func RunnersEdit(ctx *context.Context) {
 
 	ctx.Data["Runner"] = runner
 
+	// Parse runner capabilities if available
+	if runner.CapabilitiesJSON != "" {
+		var caps structs.RunnerCapability
+		if err := json.Unmarshal([]byte(runner.CapabilitiesJSON), &caps); err == nil {
+			ctx.Data["RunnerCapabilities"] = &caps
+		}
+	}
+
 	opts := actions_model.FindTaskOptions{
 		ListOptions: db.ListOptions{
 			Page:     page,

templates/shared/actions/runner_edit.tmpl

@@ -28,6 +28,61 @@
 				</div>
 			</div>
 
+			{{if .Runner.CapabilitiesJSON}}
+			<div class="divider"></div>
+			<div class="field">
+				<label>{{ctx.Locale.Tr "actions.runners.capabilities"}}</label>
+				<div class="ui segment runner-capabilities">
+					{{if .RunnerCapabilities}}
+						<div class="tw-flex tw-flex-wrap tw-gap-4">
+							{{if .RunnerCapabilities.OS}}
+							<div class="tw-inline-block tw-mr-4">
+								<strong>{{ctx.Locale.Tr "actions.runners.capabilities.os"}}:</strong>
+								<span class="ui label">{{.RunnerCapabilities.OS}}/{{.RunnerCapabilities.Arch}}</span>
+							</div>
+							{{end}}
+							{{if .RunnerCapabilities.Docker}}
+							<div class="tw-inline-block tw-mr-4">
+								<strong>{{ctx.Locale.Tr "actions.runners.capabilities.docker"}}:</strong>
+								<span class="ui green label">{{svg "octicon-check" 14}} {{ctx.Locale.Tr "actions.runners.capabilities.available"}}</span>
+							</div>
+							{{end}}
+							{{if .RunnerCapabilities.Shell}}
+							<div class="tw-inline-block tw-mr-4">
+								<strong>{{ctx.Locale.Tr "actions.runners.capabilities.shells"}}:</strong>
+								{{range .RunnerCapabilities.Shell}}
+								<span class="ui label">{{.}}</span>
+								{{end}}
+							</div>
+							{{end}}
+						</div>
+						{{if .RunnerCapabilities.Tools}}
+						<div class="tw-mt-2">
+							<strong>{{ctx.Locale.Tr "actions.runners.capabilities.tools"}}:</strong>
+							<div class="tw-flex tw-flex-wrap tw-gap-2 tw-mt-1">
+								{{range $tool, $versions := .RunnerCapabilities.Tools}}
+								<span class="ui label">{{$tool}} {{range $versions}}{{.}} {{end}}</span>
+								{{end}}
+							</div>
+						</div>
+						{{end}}
+						{{if .RunnerCapabilities.Limitations}}
+						<div class="tw-mt-2">
+							<strong>{{ctx.Locale.Tr "actions.runners.capabilities.limitations"}}:</strong>
+							<ul class="tw-mt-1 tw-ml-4">
+								{{range .RunnerCapabilities.Limitations}}
+								<li>{{.}}</li>
+								{{end}}
+							</ul>
+						</div>
+						{{end}}
+					{{else}}
+						<pre class="tw-text-sm"><code>{{.Runner.CapabilitiesJSON}}</code></pre>
+					{{end}}
+				</div>
+			</div>
+			{{end}}
+
 			<div class="divider"></div>
 
 			<div class="field">