[GSoC] Insights dashboard (Part 2)

[Samk1710]

Dependent on

• [GSoC] Insights dashboard (Part 1) #2391
  We first need to get the above PR merged

Closes:

• Overview Panel for Insights dashboard #2299
• Data Quality Panel for Insights Dashboard #2407

Summary:
Adds the Overview and Data Quality backend and UI logic along with tests.

Importer Logs:

Improving data using insights_snapshot
INFO 2026-08-11 22:06:03.688065 UTC Pipeline [InsightsSnapshotPipeline] starting
INFO 2026-08-11 22:06:03.688237 UTC Step [compute_chart_analytics] starting
INFO 2026-08-11 22:06:03.824446 UTC Running collect_fn for overview-stats
INFO 2026-08-11 22:06:03.824615 UTC Progress: 4% (1/25)
/home/samk/Desktop/dream/vulnerablecode/venv/lib/python3.12/site-packages/django/db/models/fields/__init__.py:1612: RuntimeWarning: DateTimeField AdvisoryV2.date_collected received a naive datetime (2026-07-12 00:00:00) while time zone support is active.
  warnings.warn(
INFO 2026-08-11 22:06:06.847789 UTC Running collect_fn for overview-cross-validation
INFO 2026-08-11 22:06:06.847961 UTC Progress: 8% (2/25) ETA: 35 seconds
INFO 2026-08-11 22:06:47.900820 UTC Running collect_fn for overview-growth-trend
INFO 2026-08-11 22:06:47.901000 UTC Progress: 12% (3/25) ETA: 323 seconds (5.4 minutes)
INFO 2026-08-11 22:06:50.932333 UTC Running collect_fn for overview-historical
INFO 2026-08-11 22:06:50.932498 UTC Progress: 16% (4/25) ETA: 247 seconds (4.1 minutes)
INFO 2026-08-11 22:06:52.239543 UTC Running collect_fn for pkg-dist-donut
INFO 2026-08-11 22:06:52.239766 UTC Progress: 20% (5/25) ETA: 194 seconds (3.2 minutes)
INFO 2026-08-11 22:06:52.798622 UTC Running collect_fn for pkg-name-bar
INFO 2026-08-11 22:06:52.798850 UTC Progress: 24% (6/25) ETA: 155 seconds (2.6 minutes)
INFO 2026-08-11 22:06:52.835914 UTC Progress: 28% (7/25) ETA: 126 seconds (2.1 minutes)
INFO 2026-08-11 22:06:52.862489 UTC Progress: 32% (8/25) ETA: 104 seconds (1.7 minutes)
INFO 2026-08-11 22:06:54.795965 UTC Progress: 36% (9/25) ETA: 91 seconds (1.5 minutes)
INFO 2026-08-11 22:06:54.813436 UTC Progress: 40% (10/25) ETA: 76 seconds (1.3 minutes)
INFO 2026-08-11 22:06:55.904873 UTC Progress: 44% (11/25) ETA: 66 seconds (1.1 minutes)
INFO 2026-08-11 22:06:56.190821 UTC Progress: 48% (12/25) ETA: 57 seconds
INFO 2026-08-11 22:06:56.341475 UTC Progress: 52% (13/25) ETA: 48 seconds
INFO 2026-08-11 22:06:56.345879 UTC Progress: 56% (14/25) ETA: 41 seconds
INFO 2026-08-11 22:06:56.379527 UTC Progress: 60% (15/25) ETA: 35 seconds
INFO 2026-08-11 22:06:58.889477 UTC Progress: 64% (16/25) ETA: 31 seconds
INFO 2026-08-11 22:07:03.313615 UTC Progress: 68% (17/25) ETA: 28 seconds
INFO 2026-08-11 22:07:04.194932 UTC Progress: 72% (18/25) ETA: 23 seconds
INFO 2026-08-11 22:07:06.170496 UTC Progress: 76% (19/25) ETA: 20 seconds
INFO 2026-08-11 22:07:08.407334 UTC Running collect_fn for pkg-cwe-bar
INFO 2026-08-11 22:07:08.407522 UTC Progress: 80% (20/25) ETA: 16 seconds
INFO 2026-08-11 22:07:09.060406 UTC Running collect_fn for severity-scatter-plot
INFO 2026-08-11 22:07:09.060572 UTC Progress: 84% (21/25) ETA: 12 seconds
INFO 2026-08-11 22:07:11.061774 UTC Running collect_fn for importer-empty-pkg-bar
INFO 2026-08-11 22:07:11.061971 UTC Progress: 88% (22/25) ETA: 9 seconds
INFO 2026-08-11 22:07:11.062052 UTC Running collect_fn for importer-exploit-bar
INFO 2026-08-11 22:07:11.062219 UTC Progress: 92% (23/25) ETA: 6 seconds
INFO 2026-08-11 22:07:11.062368 UTC Running collect_fn for dq-issue-type-bar
INFO 2026-08-11 22:07:11.062465 UTC Progress: 96% (24/25) ETA: 3 seconds
INFO 2026-08-11 22:07:12.612386 UTC Running collect_fn for dq-resolution-timeline
INFO 2026-08-11 22:07:12.612601 UTC Progress: 100% (25/25)
INFO 2026-08-11 22:07:18.053419 UTC Step [compute_chart_analytics] completed in 74 seconds (1.2 minutes)
INFO 2026-08-11 22:07:18.053609 UTC Step [save_snapshot] starting
INFO 2026-08-11 22:07:18.053777 UTC Saving snapshot
INFO 2026-08-11 22:07:18.092403 UTC Snapshot saved successfully.
INFO 2026-08-11 22:07:18.096803 UTC Step [save_snapshot] completed in 0 seconds
INFO 2026-08-11 22:07:18.096948 UTC Pipeline completed in 74 seconds (1.2 minutes)

[Samk1710]

Overview Panel

Data Quality Analytics Panel