fix(tui): route /skills subcommands through skills.manage instead of curses slash.exec

/skills install, inspect, search, browse, list now call the typed skills.manage RPC
and render results via panel/page. Previously they fell through to slash.exec which
invokes v1's curses code path — that hangs or crashes inside the Ink worker per the
§2 parity-audit finding.

Also drop Enter-as-install from the Skills Hub action stage since the Hub lists
locally installed skills; primary action is inspect-and-close. x still triggers a
manual reinstall for power users.

ui-tui/src/app/slash/commands/ops.ts

@@ -1,26 +1,158 @@
-import type { SlashExecResponse, ToolsConfigureResponse } from '../../../gatewayTypes.js'
+import type { ToolsConfigureResponse } from '../../../gatewayTypes.js'
+import type { PanelSection } from '../../../types.js'
 import { patchOverlayState } from '../../overlayStore.js'
 import type { SlashCommand } from '../types.js'
 
+interface SkillInfo {
+  category?: string
+  description?: string
+  name?: string
+  path?: string
+}
+
+interface SkillsListResponse {
+  skills?: Record<string, string[]>
+}
+
+interface SkillsInspectResponse {
+  info?: SkillInfo
+}
+
+interface SkillsSearchResponse {
+  results?: { description?: string; name: string }[]
+}
+
+interface SkillsInstallResponse {
+  installed?: boolean
+  name?: string
+}
+
 export const opsCommands: SlashCommand[] = [
   {
-    help: 'browse, inspect, and install skills',
+    help: 'browse, inspect, install skills',
     name: 'skills',
     run: (arg, ctx) => {
-      if (!arg.trim()) {
+      const text = arg.trim()
+
+      if (!text) {
         return patchOverlayState({ skillsHub: true })
       }
 
-      ctx.gateway
-        .rpc<SlashExecResponse>('slash.exec', { command: `skills ${arg}`, session_id: ctx.sid })
-        .then(
-          ctx.guarded<SlashExecResponse>(r => {
-            if (r.output) {
-              ctx.transcript.page(r.output, 'Skills')
-            }
-          })
-        )
-        .catch(ctx.guardedErr)
+      const [sub, ...rest] = text.split(/\s+/)
+      const query = rest.join(' ').trim()
+      const { rpc } = ctx.gateway
+      const { page, panel, sys } = ctx.transcript
+
+      if (sub === 'list') {
+        rpc<SkillsListResponse>('skills.manage', { action: 'list' })
+          .then(
+            ctx.guarded<SkillsListResponse>(r => {
+              const cats = Object.entries(r.skills ?? {}).sort()
+
+              if (!cats.length) {
+                return sys('no skills available')
+              }
+
+              panel(
+                'Skills',
+                cats.map<PanelSection>(([title, items]) => ({ items, title }))
+              )
+            })
+          )
+          .catch(ctx.guardedErr)
+
+        return
+      }
+
+      if (sub === 'inspect') {
+        if (!query) {
+          return sys('usage: /skills inspect <name>')
+        }
+
+        rpc<SkillsInspectResponse>('skills.manage', { action: 'inspect', query })
+          .then(
+            ctx.guarded<SkillsInspectResponse>(r => {
+              const info = r.info ?? {}
+
+              if (!info.name) {
+                return sys(`unknown skill: ${query}`)
+              }
+
+              const rows: [string, string][] = [
+                ['Name', String(info.name)],
+                ['Category', String(info.category ?? '')],
+                ['Path', String(info.path ?? '')]
+              ]
+
+              const sections: PanelSection[] = [{ rows }]
+
+              if (info.description) {
+                sections.push({ text: String(info.description) })
+              }
+
+              panel('Skill', sections)
+            })
+          )
+          .catch(ctx.guardedErr)
+
+        return
+      }
+
+      if (sub === 'search') {
+        if (!query) {
+          return sys('usage: /skills search <query>')
+        }
+
+        rpc<SkillsSearchResponse>('skills.manage', { action: 'search', query })
+          .then(
+            ctx.guarded<SkillsSearchResponse>(r => {
+              const results = r.results ?? []
+
+              if (!results.length) {
+                return sys(`no results for: ${query}`)
+              }
+
+              panel(`Search: ${query}`, [{ rows: results.map(s => [s.name, s.description ?? '']) }])
+            })
+          )
+          .catch(ctx.guardedErr)
+
+        return
+      }
+
+      if (sub === 'install') {
+        if (!query) {
+          return sys('usage: /skills install <name or url>')
+        }
+
+        sys(`installing ${query}…`)
+
+        rpc<SkillsInstallResponse>('skills.manage', { action: 'install', query })
+          .then(
+            ctx.guarded<SkillsInstallResponse>(r =>
+              sys(r.installed ? `installed ${r.name ?? query}` : 'install failed')
+            )
+          )
+          .catch(ctx.guardedErr)
+
+        return
+      }
+
+      if (sub === 'browse') {
+        const pageNum = parseInt(query, 10) || 1
+
+        rpc<Record<string, unknown>>('skills.manage', { action: 'browse', page: pageNum })
+          .then(
+            ctx.guarded<Record<string, unknown>>(r =>
+              page(JSON.stringify(r, null, 2).slice(0, 4000), `Browse Skills — p${pageNum}`)
+            )
+          )
+          .catch(ctx.guardedErr)
+
+        return
+      }
+
+      sys('usage: /skills [list | inspect <n> | install <n> | search <q> | browse [page]]')
     }
   },