fix(metadata): migrate preview URLs to anyplot-images bucket

The pyplots.ai → anyplot.ai rebrand (bd4cee1) flipped the /proxy/html
bucket allowlist to anyplot-images but left 2,677 metadata YAMLs
pointing at gs://pyplots-images/. sync-postgres carried the stale URLs
into the DB, so every interactive plot (plotly, bokeh, altair,
highcharts, pygal, lets-plot) 400'd at the proxy — only static PNGs
kept working because they bypass the proxy.

gs://anyplot-images/ is a full mirror of the old bucket (verified with
gcloud), so a one-shot rewrite of preview_url/preview_html is enough.
sync-postgres will update the DB on merge to main.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: MarkusNeusinger

plots/acf-pacf/metadata/altair.yaml

@@ -7,8 +7,8 @@ workflow_run: 23097477548
 issue: 4663
 python_version: 3.14.3
 library_version: 6.0.0
-preview_url: https://storage.googleapis.com/pyplots-images/plots/acf-pacf/altair/plot.png
-preview_html: https://storage.googleapis.com/pyplots-images/plots/acf-pacf/altair/plot.html
+preview_url: https://storage.googleapis.com/anyplot-images/plots/acf-pacf/altair/plot.png
+preview_html: https://storage.googleapis.com/anyplot-images/plots/acf-pacf/altair/plot.html
 quality_score: 92
 review:
   strengths:

plots/acf-pacf/metadata/bokeh.yaml

@@ -7,8 +7,8 @@ workflow_run: 23097477556
 issue: 4663
 python_version: 3.14.3
 library_version: 3.9.0
-preview_url: https://storage.googleapis.com/pyplots-images/plots/acf-pacf/bokeh/plot.png
-preview_html: https://storage.googleapis.com/pyplots-images/plots/acf-pacf/bokeh/plot.html
+preview_url: https://storage.googleapis.com/anyplot-images/plots/acf-pacf/bokeh/plot.png
+preview_html: https://storage.googleapis.com/anyplot-images/plots/acf-pacf/bokeh/plot.html
 quality_score: 92
 review:
   strengths:

plots/acf-pacf/metadata/highcharts.yaml

@@ -7,8 +7,8 @@ workflow_run: 23097477722
 issue: 4663
 python_version: 3.14.3
 library_version: unknown
-preview_url: https://storage.googleapis.com/pyplots-images/plots/acf-pacf/highcharts/plot.png
-preview_html: https://storage.googleapis.com/pyplots-images/plots/acf-pacf/highcharts/plot.html
+preview_url: https://storage.googleapis.com/anyplot-images/plots/acf-pacf/highcharts/plot.png
+preview_html: https://storage.googleapis.com/anyplot-images/plots/acf-pacf/highcharts/plot.html
 quality_score: 87
 review:
   strengths:

plots/acf-pacf/metadata/letsplot.yaml

@@ -7,8 +7,8 @@ workflow_run: 23097477745
 issue: 4663
 python_version: 3.14.3
 library_version: 4.9.0
-preview_url: https://storage.googleapis.com/pyplots-images/plots/acf-pacf/letsplot/plot.png
-preview_html: https://storage.googleapis.com/pyplots-images/plots/acf-pacf/letsplot/plot.html
+preview_url: https://storage.googleapis.com/anyplot-images/plots/acf-pacf/letsplot/plot.png
+preview_html: https://storage.googleapis.com/anyplot-images/plots/acf-pacf/letsplot/plot.html
 quality_score: 90
 review:
   strengths:

plots/acf-pacf/metadata/matplotlib.yaml

@@ -7,7 +7,7 @@ workflow_run: 23097477555
 issue: 4663
 python_version: 3.14.3
 library_version: 3.10.8
-preview_url: https://storage.googleapis.com/pyplots-images/plots/acf-pacf/matplotlib/plot.png
+preview_url: https://storage.googleapis.com/anyplot-images/plots/acf-pacf/matplotlib/plot.png
 preview_html: null
 quality_score: 90
 review:

plots/acf-pacf/metadata/plotly.yaml

@@ -7,8 +7,8 @@ workflow_run: 23097477554
 issue: 4663
 python_version: 3.14.3
 library_version: 6.6.0
-preview_url: https://storage.googleapis.com/pyplots-images/plots/acf-pacf/plotly/plot.png
-preview_html: https://storage.googleapis.com/pyplots-images/plots/acf-pacf/plotly/plot.html
+preview_url: https://storage.googleapis.com/anyplot-images/plots/acf-pacf/plotly/plot.png
+preview_html: https://storage.googleapis.com/anyplot-images/plots/acf-pacf/plotly/plot.html
 quality_score: 90
 review:
   strengths:

plots/acf-pacf/metadata/plotnine.yaml

@@ -7,7 +7,7 @@ workflow_run: 23097477539
 issue: 4663
 python_version: 3.14.3
 library_version: 0.15.3
-preview_url: https://storage.googleapis.com/pyplots-images/plots/acf-pacf/plotnine/plot.png
+preview_url: https://storage.googleapis.com/anyplot-images/plots/acf-pacf/plotnine/plot.png
 preview_html: null
 quality_score: 90
 review:

plots/acf-pacf/metadata/pygal.yaml

@@ -7,8 +7,8 @@ workflow_run: 23097477625
 issue: 4663
 python_version: 3.14.3
 library_version: 3.1.0
-preview_url: https://storage.googleapis.com/pyplots-images/plots/acf-pacf/pygal/plot.png
-preview_html: https://storage.googleapis.com/pyplots-images/plots/acf-pacf/pygal/plot.html
+preview_url: https://storage.googleapis.com/anyplot-images/plots/acf-pacf/pygal/plot.png
+preview_html: https://storage.googleapis.com/anyplot-images/plots/acf-pacf/pygal/plot.html
 quality_score: 85
 review:
   strengths:

plots/acf-pacf/metadata/seaborn.yaml

@@ -7,7 +7,7 @@ workflow_run: 23097477569
 issue: 4663
 python_version: 3.14.3
 library_version: 0.13.2
-preview_url: https://storage.googleapis.com/pyplots-images/plots/acf-pacf/seaborn/plot.png
+preview_url: https://storage.googleapis.com/anyplot-images/plots/acf-pacf/seaborn/plot.png
 preview_html: null
 quality_score: 90
 review:

plots/alluvial-basic/metadata/altair.yaml

@@ -7,8 +7,8 @@ workflow_run: 20520941866
 issue: 1878
 python_version: 3.13.11
 library_version: 6.0.0
-preview_url: https://storage.googleapis.com/pyplots-images/plots/alluvial-basic/altair/plot.png
-preview_html: https://storage.googleapis.com/pyplots-images/plots/alluvial-basic/altair/plot.html
+preview_url: https://storage.googleapis.com/anyplot-images/plots/alluvial-basic/altair/plot.png
+preview_html: https://storage.googleapis.com/anyplot-images/plots/alluvial-basic/altair/plot.html
 quality_score: 95
 impl_tags:
   dependencies: []