Update Cliffy to 1.0.0-rc.8 in CLI package

Upgraded @cliffy packages from 1.0.0-rc.4 to 1.0.0-rc.8 to address
compatibility issues with newer Deno runtime. Updated import paths
for CompletionsCommand and HelpCommand to use their new submodule
locations, and standardized @std/fmt dependency version.

Author: dahlia

deno.lock

@@ -4,17 +4,17 @@
   "license": "MIT",
   "exports": "./src/mod.ts",
   "imports": {
-    "@cliffy/ansi": "jsr:@cliffy/[email protected].4",
-    "@cliffy/command": "jsr:@cliffy/[email protected].4",
-    "@cliffy/prompt": "jsr:@cliffy/[email protected].4",
-    "@cliffy/table": "jsr:@cliffy/[email protected].4",
+    "@cliffy/ansi": "jsr:@cliffy/[email protected].8",
+    "@cliffy/command": "jsr:@cliffy/[email protected].8",
+    "@cliffy/prompt": "jsr:@cliffy/[email protected].8",
+    "@cliffy/table": "jsr:@cliffy/[email protected].8",
     "@cross/dir": "jsr:@cross/dir@^1.1.0",
     "@hongminhee/localtunnel": "npm:@hongminhee/localtunnel@^0.3.0",
     "@jimp/core": "npm:@jimp/core@^1.6.0",
     "@jimp/wasm-webp": "npm:@jimp/wasm-webp@^1.6.0",
     "@poppanator/http-constants": "npm:@poppanator/http-constants@^1.1.1",
     "@std/assert": "jsr:@std/assert@^1.0.13",
-    "@std/fmt/colors": "jsr:@std/fmt@^0.224.0/colors",
+    "@std/fmt": "jsr:@std/fmt@^1.0.8",
     "@std/testing": "jsr:@std/testing@^1.0.8",
     "@std/dotenv": "jsr:@std/dotenv@^0.225.2",
     "@std/semver": "jsr:@std/semver@^1.0.5",

packages/cli/deno.json

@@ -1,4 +1,6 @@
-import { Command, CompletionsCommand, HelpCommand } from "@cliffy/command";
+import { Command } from "@cliffy/command";
+import { CompletionsCommand } from "@cliffy/command/completions";
+import { HelpCommand } from "@cliffy/command/help";
 import { getFileSink } from "@logtape/file";
 import { configure, getConsoleSink } from "@logtape/logtape";
 import { setColorEnabled } from "@std/fmt/colors";