Datary 0.2.2: rename path to /Datary and bound large plots

[devkyato]

Summary

Maintenance release for Datary that:

• Retargets badges, package URLs, and issue-template links to https://github.com/devkyato/Datary (PyPI/distribution name stays datary-lab for installer compatibility).
• Implements issue Bound plotting memory with explicit downsampling #13: extrema-preserving plot downsampling with --plot-max-points (default 5000), sibling .meta.json metadata, and report/CLI disclosure of original vs plotted counts.
• Documents the connected projects around Datary (Lowpack, Relay, OpenNet, TapAuth, Custom Arduino Libraries, Arduino Programs Guide).
• Bumps version to 0.2.2 with changelog and release notes.

Connected projects inventory

Repository	Latest noted release / status	Open enhancement themes
Datary (datary-lab)	0.2.1 → this PR prepares 0.2.2	signed sessions, quality profiles, comparison resampling
Lowpack	0.2.1	streaming extract, telemetry transforms, fuzzing
Relay	0.2.1	suppressions, network timeout context, Clang enrichment
OpenNet	0.2.0	TS client, auth handshake, hardware soak test
TapAuth	current main	no open issues
Custom-Arduino-Libraries	v1.0.0	Library Manager, button pause example, hardware validate
Arduino-Programs-Guide	current main	pin-map checks, breadboard diagrams, E-stop validate

This cloud agent only has push access to Datary. Sibling repos and the GitHub Settings rename from datary-lab → Datary need owner action. Until renamed, /Datary already redirects to the current repo.

Evidence

• python3 -m pytest — 90 passed, coverage ≥75%
• python3 -m ruff check . / ruff format --check .
• python3 -m mypy
• Built datary_lab-0.2.2 sdist + wheel locally

Owner follow-ups

1. GitHub → Settings → General → rename repository to Datary
2. After merge, publish GitHub Release v0.2.2 with wheel/sdist + SHA256SUMS
3. Optionally update the profile README (devkyato/devkyato) to include Datary, Lowpack, and Relay
4. Optionally add reciprocal “Connected projects” sections in sibling READMEs

Checklist

• python -m pytest
• python -m ruff check .
• python -m ruff format --check .
• python -m mypy
• Documentation and changelog updated
• No secrets, telemetry, background networking, or data execution added