Initial commit — ComfyUI Discord bot + web UI

Full source for the-third-rev: Discord bot (discord.py), FastAPI web UI
(React/TS/Vite/Tailwind), ComfyUI integration, generation history DB,
preset manager, workflow inspector, and all supporting modules.

Excluded from tracking: .env, invite_tokens.json, *.db (SQLite),
current-workflow-changes.json, user_settings/, presets/, logs/,
web-static/ (build output), frontend/node_modules/.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

web/routers/share_router.py

@@ -0,0 +1,85 @@
+"""GET /api/share/{token}; GET /api/share/{token}/file/{filename}"""
+from __future__ import annotations
+
+import base64
+
+from fastapi import APIRouter, Depends, HTTPException, Request
+from fastapi.responses import Response
+
+from web.auth import require_auth
+
+router = APIRouter()
+
+
+@router.get("/{token}")
+async def get_share(token: str, _: dict = Depends(require_auth)):
+    """Fetch share metadata and images. Any authenticated user may view a valid share link."""
+    from generation_db import get_share_by_token, get_files
+    gen = get_share_by_token(token)
+    if gen is None:
+        raise HTTPException(404, "Share not found or revoked")
+    files = get_files(gen["prompt_id"])
+    return {
+        "prompt_id": gen["prompt_id"],
+        "created_at": gen["created_at"],
+        "overrides": gen["overrides"],
+        "seed": gen["seed"],
+        "images": [
+            {
+                "filename": f["filename"],
+                "data": base64.b64encode(f["data"]).decode() if not f["mime_type"].startswith("video/") else None,
+                "mime_type": f["mime_type"],
+            }
+            for f in files
+        ],
+    }
+
+
+@router.get("/{token}/file/{filename}")
+async def get_share_file(
+    token: str,
+    filename: str,
+    request: Request,
+    _: dict = Depends(require_auth),
+):
+    """Stream a single output file via share token, with HTTP range support for video seeking."""
+    from generation_db import get_share_by_token, get_files
+    gen = get_share_by_token(token)
+    if gen is None:
+        raise HTTPException(404, "Share not found or revoked")
+    files = get_files(gen["prompt_id"])
+    matched = next((f for f in files if f["filename"] == filename), None)
+    if matched is None:
+        raise HTTPException(404, f"File {filename!r} not found")
+
+    data: bytes = matched["data"]
+    mime: str = matched["mime_type"]
+    total = len(data)
+
+    range_header = request.headers.get("range")
+    if range_header:
+        range_val = range_header.replace("bytes=", "")
+        start_str, _, end_str = range_val.partition("-")
+        start = int(start_str) if start_str else 0
+        end = int(end_str) if end_str else total - 1
+        end = min(end, total - 1)
+        chunk = data[start : end + 1]
+        return Response(
+            content=chunk,
+            status_code=206,
+            media_type=mime,
+            headers={
+                "Content-Range": f"bytes {start}-{end}/{total}",
+                "Accept-Ranges": "bytes",
+                "Content-Length": str(len(chunk)),
+            },
+        )
+
+    return Response(
+        content=data,
+        media_type=mime,
+        headers={
+            "Accept-Ranges": "bytes",
+            "Content-Length": str(total),
+        },
+    )