feat: Replace figlet with @clack/prompts for polished CLI experience

Replaces ASCII art banner and basic readline prompts with @clack/prompts for a modern interactive CLI. Adds animated shimmer progress bars with spinner glyphs during indexing operations. Improves installer UX with structured prompts, better error handling, and cleaner output formatting throughout all CLI commands.

package-lock.json

@@ -10,9 +10,9 @@
       "hasInstallScript": true,
       "license": "MIT",
       "dependencies": {
+        "@clack/prompts": "^1.2.0",
         "@xenova/transformers": "^2.17.0",
         "commander": "^14.0.2",
-        "figlet": "^1.8.0",
         "node-sqlite3-wasm": "^0.8.30",
         "picomatch": "^4.0.3",
         "tree-sitter-wasms": "^0.1.11",
@@ -23,7 +23,6 @@
       },
       "devDependencies": {
         "@types/better-sqlite3": "^7.6.0",
-        "@types/figlet": "^1.5.8",
         "@types/node": "^20.19.30",
         "@types/picomatch": "^4.0.2",
         "typescript": "^5.0.0",
@@ -37,6 +36,28 @@
         "sqlite-vss": "^0.1.2"
       }
     },
+    "node_modules/@clack/core": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/@clack/core/-/core-1.2.0.tgz",
+      "integrity": "sha512-qfxof/3T3t9DPU/Rj3OmcFyZInceqj/NVtO9rwIuJqCUgh32gwPjpFQQp/ben07qKlhpwq7GzfWpST4qdJ5Drg==",
+      "license": "MIT",
+      "dependencies": {
+        "fast-wrap-ansi": "^0.1.3",
+        "sisteransi": "^1.0.5"
+      }
+    },
+    "node_modules/@clack/prompts": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/@clack/prompts/-/prompts-1.2.0.tgz",
+      "integrity": "sha512-4jmztR9fMqPMjz6H/UZXj0zEmE43ha1euENwkckKKel4XpSfokExPo5AiVStdHSAlHekz4d0CA/r45Ok1E4D3w==",
+      "license": "MIT",
+      "dependencies": {
+        "@clack/core": "1.2.0",
+        "fast-string-width": "^1.1.0",
+        "fast-wrap-ansi": "^0.1.3",
+        "sisteransi": "^1.0.5"
+      }
+    },
     "node_modules/@esbuild/aix-ppc64": {
       "version": "0.21.5",
       "resolved": "https://registry.npmjs.org/@esbuild/aix-ppc64/-/aix-ppc64-0.21.5.tgz",
@@ -875,13 +896,6 @@
       "dev": true,
       "license": "MIT"
     },
-    "node_modules/@types/figlet": {
-      "version": "1.7.0",
-      "resolved": "https://registry.npmjs.org/@types/figlet/-/figlet-1.7.0.tgz",
-      "integrity": "sha512-KwrT7p/8Eo3Op/HBSIwGXOsTZKYiM9NpWRBJ5sVjWP/SmlS+oxxRvJht/FNAtliJvja44N3ul1yATgohnVBV0Q==",
-      "dev": true,
-      "license": "MIT"
-    },
     "node_modules/@types/long": {
       "version": "4.0.2",
       "resolved": "https://registry.npmjs.org/@types/long/-/long-4.0.2.tgz",
@@ -1476,19 +1490,28 @@
       "integrity": "sha512-/d9sfos4yxzpwkDkuN7k2SqFKtYNmCTzgfEpz82x34IM9/zc8KGxQoXg1liNC/izpRM/MBdt44Nmx41ZWqk+FQ==",
       "license": "MIT"
     },
-    "node_modules/figlet": {
-      "version": "1.10.0",
-      "resolved": "https://registry.npmjs.org/figlet/-/figlet-1.10.0.tgz",
-      "integrity": "sha512-aktIwEZZ6Gp9AWdMXW4YCi0J2Ahuxo67fNJRUIWD81w8pQ0t9TS8FFpbl27ChlTLF06VkwjDesZSzEVzN75rzA==",
+    "node_modules/fast-string-truncated-width": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/fast-string-truncated-width/-/fast-string-truncated-width-1.2.1.tgz",
+      "integrity": "sha512-Q9acT/+Uu3GwGj+5w/zsGuQjh9O1TyywhIwAxHudtWrgF09nHOPrvTLhQevPbttcxjr/SNN7mJmfOw/B1bXgow==",
+      "license": "MIT"
+    },
+    "node_modules/fast-string-width": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/fast-string-width/-/fast-string-width-1.1.0.tgz",
+      "integrity": "sha512-O3fwIVIH5gKB38QNbdg+3760ZmGz0SZMgvwJbA1b2TGXceKE6A2cOlfogh1iw8lr049zPyd7YADHy+B7U4W9bQ==",
       "license": "MIT",
       "dependencies": {
-        "commander": "^14.0.0"
-      },
-      "bin": {
-        "figlet": "bin/index.js"
-      },
-      "engines": {
-        "node": ">= 17.0.0"
+        "fast-string-truncated-width": "^1.2.0"
+      }
+    },
+    "node_modules/fast-wrap-ansi": {
+      "version": "0.1.6",
+      "resolved": "https://registry.npmjs.org/fast-wrap-ansi/-/fast-wrap-ansi-0.1.6.tgz",
+      "integrity": "sha512-HlUwET7a5gqjURj70D5jl7aC3Zmy4weA1SHUfM0JFI0Ptq987NH2TwbBFLoERhfwk+E+eaq4EK3jXoT+R3yp3w==",
+      "license": "MIT",
+      "dependencies": {
+        "fast-string-width": "^1.1.0"
       }
     },
     "node_modules/file-uri-to-path": {
@@ -2082,6 +2105,12 @@
         "is-arrayish": "^0.3.1"
       }
     },
+    "node_modules/sisteransi": {
+      "version": "1.0.5",
+      "resolved": "https://registry.npmjs.org/sisteransi/-/sisteransi-1.0.5.tgz",
+      "integrity": "sha512-bLGGlR1QxBcynn2d5YmDX4MGjlZvy2MRBDRNHLJ8VI6l6+9FUiyTFNJ0IveOSP0bcXgVDPRcfGqA0pjaqUpfVg==",
+      "license": "MIT"
+    },
     "node_modules/source-map-js": {
       "version": "1.2.1",
       "resolved": "https://registry.npmjs.org/source-map-js/-/source-map-js-1.2.1.tgz",