pi-image-paths: attach dropped image paths and draw them in the chat

A screenshot is normally sent to pi as a path, so the model gets its text and
the reader gets nothing: pi renders image blocks in tool results but never on
user messages. This extension closes both halves — the path collapses to
"[Image #N]" as you type or on send, and the picture is drawn below the sent
message.

The rewrite is a terminal-input listener that re-reads a settled editor, joins
word by word for paths with unescaped spaces, and reports a path that does not
exist instead of eating the prompt. The drawing appends a custom session entry
carrying the message's image blocks, one macrotask after message_end so it lands
below the message pi persists afterwards, and renders it with pi-tui's inline
image component under terminal.showImages and terminal.imageWidthCells. Entries
stay out of the model context, so each image is still sent to the model once.

Tests: npm test (21, node:test over a stand-in for pi: rewrite, send-time
attachment, missing paths, append gate, renderer gating) and npm run typecheck.

Co-Authored-By: nw-flash-flex <noreply@freno.me>

package.json

@@ -0,0 +1,44 @@
+{
+  "name": "@mikefreno/pi-image-paths",
+  "version": "0.1.0",
+  "description": "Image file paths in pi's chat input become attached images — the path collapses to a marker as you type, and the picture is drawn below the sent message.",
+  "keywords": [
+    "pi-package",
+    "pi-extension",
+    "images",
+    "screenshot",
+    "drag-and-drop",
+    "tui"
+  ],
+  "author": "Michael Freno",
+  "license": "MIT",
+  "homepage": "https://git.freno.me/Mike/pi-image-paths",
+  "repository": {
+    "type": "git",
+    "url": "git+https://git.freno.me/Mike/pi-image-paths.git"
+  },
+  "bugs": {
+    "url": "https://git.freno.me/Mike/pi-image-paths/issues"
+  },
+  "files": [
+    "index.ts",
+    "README.md",
+    "LICENSE"
+  ],
+  "scripts": {
+    "test": "JITI_ALIAS='{\"@earendil-works/pi-tui\":\"/opt/homebrew/lib/node_modules/@earendil-works/pi-coding-agent/node_modules/@earendil-works/pi-tui/dist/index.js\"}' node /opt/homebrew/lib/node_modules/@earendil-works/pi-coding-agent/node_modules/jiti/lib/jiti-cli.mjs index.test.ts",
+    "typecheck": "tsc -p ."
+  },
+  "pi": {
+    "extensions": [
+      "./index.ts"
+    ]
+  },
+  "peerDependencies": {
+    "@earendil-works/pi-coding-agent": "*",
+    "@earendil-works/pi-tui": "*"
+  },
+  "publishConfig": {
+    "access": "public"
+  }
+}