feat(source2): lock dark mode, sans-serif typography, and all recent updates

docs/log/2026-07-22-1905-adhoc.md

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+# Iteration Log - 2026-07-22-1905-adhoc
+
+## Request & Scope
+- **Request**: Resolve telemetry bandwidth mismatch between main dashboard and detail modals by implementing time range-based summation.
+- **Affected Components**: Proxy Collector, Backend routes (`/summary`, `/app-details`, `/device-details`).
+
+## Steps Taken
+1. **Analysis**: Verified that MongoDB stored 24h cumulative snapshots periodically, which the backend then incorrectly `$sum`med across multiple periods, causing Terabyte multiplication.
+2. **Proxy Redesign**: Changed the collection interval parameter from `1440` (24h) to `5` (5m) in all `netify` queries inside `proxy/collector.js`, `proxy/collectorHelper.js`, and `proxy/collectorHelperDpi2.js`.
+3. **Backend Refactoring**:
+   - `/summary`: Grouped and summed `bandwidth_down` and `bandwidth_up` over the timeRange filter.
+   - `/app-details` and `/device-details`: Rewrote manual latest-timestamp deduplication logic into standard dynamic aggregation summation.
+4. **Cleanup & Verification**:
+   - Cleared existing contaminated data using `wipe_telemetry_collections.js`.
+   - Executed a fresh collector run with `clean_and_recollect.js`.
+   - Successfully verified endpoints with signed mock JWT credentials.
+
+## Outcome
+- Real-time data is now stored in clean 5-minute delta slices.
+- Dashboard queries dynamically scale their sums to the active `timeRange` filter, outputting realistic MB/GB scales instead of erroneous TB values.