feat: Update prototype UI with map functionality (#83)

This PR updates the prototype with changes demoed at the Barcelona 2025
workshop:

- Adds map functionality 

- Modifies sunburst design with reusable component 

Note: This version contains hardcoded values for percentiles as well as
configurations for zoom in per country. These will be updated with the
next version of the prototype to be dynamically populated.

While there, move rather than copying `./cache/v0`, which was unused by
the library, so keep the diff ~small.

---------

Co-authored-by: Simone Basso <bassosimone@gmail.com>

Author: zarsl

.gitignore

@@ -182,9 +182,9 @@ cython_debug/
 .abstra/
 
 # Visual Studio Code
-#  Visual Studio Code specific template is maintained in a separate VisualStudioCode.gitignore 
+#  Visual Studio Code specific template is maintained in a separate VisualStudioCode.gitignore
 #  that can be found at https://github.com/github/gitignore/blob/main/Global/VisualStudioCode.gitignore
-#  and can be added to the global gitignore or merged into this file. However, if you prefer, 
+#  and can be added to the global gitignore or merged into this file. However, if you prefer,
 #  you could uncomment the following to ignore the entire vscode folder
 # .vscode/
 
@@ -205,3 +205,6 @@ cython_debug/
 marimo/_static/
 marimo/_lsp/
 __marimo__/
+
+# macOS .DS_Store files
+.DS_Store

data/README.md

@@ -10,34 +10,7 @@ This directory contains static reference data used by the IQB prototype.
 
 **Countries**: All available countries
 
-## Data Formats
-
-We maintain two data formats in `./cache/`:
-
-### v0 - JSON Format (Deprecated - Golden Files Only)
-
-**IMPORTANT**: The v0 cache is no longer actively updated. Files in `./cache/v0/` are
-kept as golden files for testing and backward compatibility only.
-
-Per-country JSON files with pre-aggregated percentiles:
-
-- **Location**: `./cache/v0/{country}_{year}_{month}.json`
-- **Example**: `us_2024_10.json` (~31M download samples, ~24M upload samples)
-- **Structure**: Simple JSON with percentiles (p1, p5, p10, p25, p50, p75, p90, p95, p99)
-- **Use case**: Golden files for testing, backward compatibility
-
-```json
-{
-  "metrics": {
-    "download_throughput_mbps": {"p1": 0.38, "p99": 891.82},
-    "upload_throughput_mbps": {"p1": 0.06, "p99": 813.73},
-    "latency_ms": {"p1": 0.16, "p99": 254.34},
-    "packet_loss": {"p1": 0.0, "p99": 0.25}
-  }
-}
-```
-
-### v1 - Parquet Format (Current)
+## Data Format
 
 Raw query results stored efficiently for flexible analysis:
 
@@ -47,8 +20,6 @@ Raw query results stored efficiently for flexible analysis:
   - `stats.json` - Query metadata (start time, duration, bytes processed/billed, template hash)
 - **Use case**: Efficient filtering, large-scale analysis, direct PyArrow/Pandas processing
 
-**Current format**: The [../library](../library) `IQBCache` uses v1 exclusively.
-
 ## GitHub Cache Synchronization (Interim Solution)
 
 **IMPORTANT**: This is a throwaway interim solution that will be replaced by GCS.
@@ -158,7 +129,7 @@ saves v1 Parquet cache only (use pandas to inspect results)
 ## Notes
 
 - **Cache format**: v1 Parquet files (~1-60 MiB) with stats.json for efficient
-processing and cost tracking. v0 JSON files are deprecated and kept only as golden files.
+processing and cost tracking.
 
 - **Time granularity**: Data is aggregated over the entire
 months of October 2024 and October 2025. The analyst decides which