release: prepare PocketStation for Python 0.1.2

[Raphjacksun7]

Purpose: publish the concise Python Connector API with complete permission, source persistence, recovery, fallback, and retry guidance.

Files changed: package versions and locks, README, release notes, task guides, platform operations, troubleshooting, and public version constants.

Product proof: Python developers can send source-aware audio through one function or one synchronous or asynchronous Connector class while Core retains bounded routing, lineage, observations, drain, abort, and joined shutdown.

Architecture boundary: Python provider authoring over the canonical Core Session and Connector worker. No second media engine or provider code enters Core.

Tests and evidence:

• 272 Python tests passed; 29 platform-specific tests skipped locally
• 8 native binding tests passed
• Ruff, formatting, and strict MyPy passed
• native strict Clippy and warnings-as-errors rustdoc passed
• clean 0.1.2 wheel and source distribution rebuilt and passed isolated installed consumers
• local Markdown links pass across 14 public files

Remaining limits: Python callbacks cross the interpreter boundary; WAN/TURN and acoustic playout remain unqualified; Windows VM latency is not a physical-device result.

Scaffold inventory: n/a. No scaffold, mock, or loopback path added.

CODE_PROTOCOL: PASS through the owning Core contract and Python lint/type/package gates.

Decision: PASS.