feat(plotly): implement bar-sorted (#2559)

## Implementation: `bar-sorted` - plotly

Implements the **plotly** version of `bar-sorted`.

**File:** `plots/bar-sorted/implementations/plotly.py`

---
:robot: *[impl-generate
workflow](https://github.com/MarkusNeusinger/pyplots/actions/runs/20593348157)*

---------

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Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

Author: github-actions[bot]

plots/bar-sorted/implementations/plotly.py

@@ -0,0 +1,75 @@
+""" pyplots.ai
+bar-sorted: Sorted Bar Chart
+Library: plotly 6.5.0 | Python 3.13.11
+Quality: 92/100 | Created: 2025-12-30
+"""
+
+import numpy as np
+import plotly.graph_objects as go
+
+
+# Data - Monthly sales by product category (realistic business scenario)
+np.random.seed(42)
+categories = [
+    "Electronics",
+    "Clothing",
+    "Home & Garden",
+    "Sports",
+    "Books",
+    "Toys",
+    "Beauty",
+    "Food & Grocery",
+    "Automotive",
+    "Office Supplies",
+]
+values = np.array([450, 380, 320, 280, 250, 220, 195, 170, 140, 95])
+
+# Sort by value descending
+sorted_indices = np.argsort(values)[::-1]
+sorted_categories = [categories[i] for i in sorted_indices]
+sorted_values = values[sorted_indices]
+
+# Create figure with horizontal bars (better for labels)
+fig = go.Figure()
+
+fig.add_trace(
+    go.Bar(
+        y=sorted_categories,
+        x=sorted_values,
+        orientation="h",
+        marker=dict(
+            color="#306998",  # Python Blue
+            line=dict(color="#1e4d6b", width=1.5),
+        ),
+        text=sorted_values,
+        textposition="outside",
+        textfont=dict(size=18),
+    )
+)
+
+# Layout for 4800x2700 px
+fig.update_layout(
+    title=dict(text="bar-sorted · plotly · pyplots.ai", font=dict(size=32), x=0.5, xanchor="center"),
+    xaxis=dict(
+        title=dict(text="Sales (thousands USD)", font=dict(size=24)),
+        tickfont=dict(size=18),
+        gridcolor="rgba(0,0,0,0.1)",
+        gridwidth=1,
+        showgrid=True,
+        range=[0, max(sorted_values) * 1.15],  # Extra space for labels
+    ),
+    yaxis=dict(
+        title=dict(text="Product Category", font=dict(size=24)),
+        tickfont=dict(size=18),
+        autorange="reversed",  # Largest at top
+    ),
+    template="plotly_white",
+    margin=dict(l=180, r=80, t=100, b=80),
+    bargap=0.25,
+)
+
+# Save as PNG (4800x2700 using scale=3)
+fig.write_image("plot.png", width=1600, height=900, scale=3)
+
+# Save interactive HTML
+fig.write_html("plot.html", include_plotlyjs="cdn")

plots/bar-sorted/metadata/plotly.yaml

@@ -0,0 +1,25 @@
+library: plotly
+specification_id: bar-sorted
+created: '2025-12-30T09:30:41Z'
+updated: '2025-12-30T09:37:56Z'
+generated_by: claude-opus-4-5-20251101
+workflow_run: 20593348157
+issue: 0
+python_version: 3.13.11
+library_version: 6.5.0
+preview_url: https://storage.googleapis.com/pyplots-images/plots/bar-sorted/plotly/plot.png
+preview_thumb: https://storage.googleapis.com/pyplots-images/plots/bar-sorted/plotly/plot_thumb.png
+preview_html: https://storage.googleapis.com/pyplots-images/plots/bar-sorted/plotly/plot.html
+quality_score: 92
+review:
+  strengths:
+  - Excellent horizontal bar orientation choice for category labels readability
+  - Clean sorting implementation with numpy argsort
+  - Professional appearance with Python Blue color scheme and subtle borders
+  - Proper use of Plotly graph_objects for fine-grained control
+  - Value labels positioned outside bars improve readability
+  - Correct title format following pyplots.ai standards
+  - Both PNG and HTML outputs generated for maximum utility
+  weaknesses:
+  - 'Minor: Grid lines could be slightly more subtle (current alpha 0.1 is good but
+    gridwidth=1 makes them slightly prominent)'