feat(cli): add claudecode install platform + runner + lazyclaudecode routing

--platform=claudecode (alias cc normalized in resolveInstallArgs); hasClaudeCode;
runClaudeCodeInstaller shells to claude plugin marketplace add/install, prints
/plugin commands + errors (no ~/.claude write) when claude absent; install
telemetry via @oh-my-opencode/omo-claude/telemetry; lazyclaudecode invocation
routes to claudecode. 26 target tests + 23 dependent tests green; both unchanged.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

src/cli/types.ts

@@ -1,6 +1,6 @@
 export type ClaudeSubscription = "no" | "yes" | "max20"
 export type BooleanArg = "no" | "yes"
-export type InstallPlatform = "opencode" | "codex" | "both"
+export type InstallPlatform = "opencode" | "codex" | "claudecode" | "both"
 
 export interface InstallArgs {
   tui: boolean
@@ -26,6 +26,7 @@ export interface InstallConfig {
   hasGemini: boolean
   hasCopilot: boolean
   hasCodex: boolean
+  hasClaudeCode: boolean
   hasOpencodeZen: boolean
   hasZaiCodingPlan: boolean
   hasKimiForCoding: boolean