Install shared skills for 11 more agents and stop Qoder listing skills twice (#31657)

* Install shared skills for 11 more agents

Add skill install provider entries for OpenClaude (own .openclaude folders,
OPENCLAUDE_CONFIG_DIR), and OpenCode 2, MiMo Code, OMP, Prime Agent, Qoder CN,
Codebuff, Freebuff, Ante, Jcode and DeepSeek Harness, which read the shared
.agents/skills folder at both scopes. A coverage test now requires every Orca
agent to have an entry or a recorded reason it has none.

* Use the shared skills folder for Qoder

Qoder's CLI loads .agents/skills at both scopes by default, so its own
.qoder/skills placement made every skill appear twice.

* Keep scanning Qoder's own skill folders

Qoder still reads .qoder/skills, so discovery keeps both folders as
discovery-only roots now that installs go to the canonical root.

src/shared/skill-install-providers.ts

@@ -97,12 +97,6 @@ export const SKILL_INSTALL_PROVIDERS = Object.freeze([
     globalSegments: ['.codebuddy', 'skills'],
     workspaceSegments: ['.codebuddy', 'skills']
   },
-  {
-    id: 'qoder',
-    displayName: 'Qoder',
-    globalSegments: ['.qoder', 'skills'],
-    workspaceSegments: ['.qoder', 'skills']
-  },
   {
     id: 'kiro',
     displayName: 'Kiro',
@@ -118,6 +112,14 @@ export const SKILL_INSTALL_PROVIDERS = Object.freeze([
     globalSegments: ['.gemini', 'config', 'skills'],
     workspaceSegments: null
   },
+  // Why: OpenClaude keeps its own `.openclaude` home; it does not read Claude's folders by default.
+  {
+    id: 'openclaude',
+    displayName: 'OpenClaude',
+    globalSegments: ['.openclaude', 'skills'],
+    workspaceSegments: ['.openclaude', 'skills'],
+    homeEnv: 'OPENCLAUDE_CONFIG_DIR'
+  },
   // Why: every agent below reads the canonical .agents/skills root at both scopes.
   {
     id: 'autohand',
@@ -214,6 +216,72 @@ export const SKILL_INSTALL_PROVIDERS = Object.freeze([
     displayName: 'GitHub Copilot',
     globalSegments: null,
     workspaceSegments: null
+  },
+  {
+    id: 'opencode2',
+    displayName: 'OpenCode 2',
+    globalSegments: null,
+    workspaceSegments: null
+  },
+  {
+    id: 'mimo-code',
+    displayName: 'MiMo Code',
+    globalSegments: null,
+    workspaceSegments: null
+  },
+  {
+    id: 'omp',
+    displayName: 'OMP',
+    globalSegments: null,
+    workspaceSegments: null
+  },
+  {
+    id: 'prime-agent',
+    displayName: 'Prime Agent',
+    globalSegments: null,
+    workspaceSegments: null
+  },
+  {
+    id: 'qoder',
+    displayName: 'Qoder',
+    globalSegments: null,
+    workspaceSegments: null
+  },
+  {
+    id: 'qoder-cn',
+    displayName: 'Qoder CN',
+    globalSegments: null,
+    workspaceSegments: null
+  },
+  {
+    id: 'codebuff',
+    displayName: 'Codebuff',
+    globalSegments: null,
+    workspaceSegments: null
+  },
+  {
+    id: 'freebuff',
+    displayName: 'Freebuff',
+    globalSegments: null,
+    workspaceSegments: null
+  },
+  {
+    id: 'ante',
+    displayName: 'Ante',
+    globalSegments: null,
+    workspaceSegments: null
+  },
+  {
+    id: 'jcode',
+    displayName: 'Jcode',
+    globalSegments: null,
+    workspaceSegments: null
+  },
+  {
+    id: 'dsh',
+    displayName: 'DeepSeek Harness',
+    globalSegments: null,
+    workspaceSegments: null
   }
 ] satisfies SkillInstallProviderEntry[])