Add scene-to-imageclip plugin

Task plugin that converts scenes tagged 'imageclip' into native Stash
image clips by renaming files to .vclip and migrating metadata.

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

Author: speckofthecosmos

plugins/scene-to-imageclip/README.md

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+# Scene to ImageClip Converter
+
+Turn tagged scenes into Stash image clips — the looping, zoomable kind — by renaming their files to `.vclip` and migrating metadata automatically.
+
+## How it works
+
+Stash has a built-in image clip feature: if a video file has a `.vclip` extension and `create_image_clip_from_videos` is enabled, Stash treats it as a looping image instead of a scene. This plugin handles the conversion for you in two steps:
+
+1. **Rename** — finds all scenes tagged `imageclip`, renames their files on disk (`video.mp4` → `video.mp4.vclip`), and sorts out any tag name variants (`image clip`, `image_clip`, `Image Clip`, etc.) into one canonical tag.
+2. **Transfer** — after you rescan, copies metadata (title, rating, performers, studio, tags, etc.) from the old scene entries to the new image clip entries, then removes the now-redundant scene records from the database.
+
+No files are ever deleted. The rename just appends `.vclip`; the cleanup only removes database records.
+
+## Setup
+
+You need two things configured in Stash before this plugin will work:
+
+1. **Enable image clip creation** — add this to your `config.yml` (or toggle it in Settings → System):
+   ```yaml
+   create_image_clip_from_videos: true
+   ```
+
+2. **Enable image scanning** on any library paths that contain your clips — in Settings → Libraries, make sure *Images* is checked (i.e. `excludeimage: false`). Otherwise Stash won't pick up the renamed files.
+
+The plugin checks both of these and warns you if something's missing.
+
+## Installation
+
+Copy the `scene-to-imageclip` folder into your Stash plugins directory:
+
+```
+<stash config dir>/plugins/scene-to-imageclip/
+```
+
+Go to **Settings → Plugins → Reload Plugins**.
+
+Requires Python 3 (included in the official Stash Docker image). No pip packages needed — stdlib only.
+
+## Workflow
+
+```
+1. Tag scenes with "imageclip" in Stash
+2. Settings → Tasks → Plugins → "Rename imageclip Scenes to .vclip" → Run
+3. Run a library scan  (Settings → Tasks → Scan)
+4. Settings → Tasks → Plugins → "Transfer metadata and clean up" → Run
+```
+
+The scan between steps 2 and 4 is important — Stash needs to discover the renamed files as image clips before the metadata transfer can find them.
+
+## Good to know
+
+- **Safe to re-run** — files already ending in `.vclip` are skipped.
+- **Multi-file scenes** — all files attached to a scene get renamed, not just the first.
+- **Leftover variant tags** — tag variants like `Image Clip` are emptied of scenes but not deleted. You can clean those up manually if you want.
+- **What doesn't transfer** — scene markers and cover images. Markers are timestamp-based and don't make sense on image clips.

plugins/scene-to-imageclip/scene-to-imageclip.yml

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+name: Scene to ImageClip Converter
+description: >
+  Converts scenes tagged 'imageclip' into Stash image-clip entities.
+  Automatically adds .vclip to image_extensions, reconciles tag name variants
+  (imageclip / image clip / image_clip / image-clip / Image Clip / ImageClip)
+  into a single canonical tag with aliases, then renames each scene file from
+  video.mp4 to video.mp4.vclip. Run a library scan after to reclassify.
+  Requires: create_image_clip_from_videos: true in config.yml, and
+  excludeimage: false on any library paths containing the files.
+version: "1.1"
+url: ""
+exec:
+  - python3
+  - "{pluginDir}/scene_to_imageclip.py"
+interface: raw
+tasks:
+  - name: Rename imageclip Scenes to .vclip
+    description: >
+      Adds .vclip to image_extensions, reconciles imageclip tag variants,
+      and renames tagged scene files to filename.ext.vclip.
+      Run a library scan afterward to reclassify as image clips.
+    defaultArgs:
+      mode: rename
+  - name: Transfer metadata and clean up original scenes
+    description: >
+      For each .vclip image clip, copies metadata (tags, rating, performers,
+      studio, title, details, date) from the original scene entry and removes
+      the scene from the database. Run after renaming files and scanning.
+    defaultArgs:
+      mode: transfer