x/v0.0.7 - Mobile Proxy fixes, SOAX library and fetch with ECH

The main reason for this release is to fix some critical issues in the Mobile Proxy related to a strategy cache crash and and issue with the storage path for Psiphon.

Fixes

• fix(x/mobileproxy): prevent panic when StrategyCache is not set by @jyyi1 in #505
• release(x): retract broken versions that potentially cause panic by @jyyi1 in #506
• fix: fetching cache dir in android by @ohnorobo in #517
• fix: fetching cache dir in android by @ohnorobo in #517

Features

• Added a package (x/soax) to use the SOAX proxy network more easily for multi-hop network measurements.
  • feat(x): add support for SOAX proxies by @fortuna in #509
• Added a -ech-config flag to x/tools/fetch to specify the ECH config and start exploring the use of ECH.
  • feat(x/tools): Add ech-config flag to fetch by @fortuna in #516
• Added AGENTS.md and GEMINI.md and updated documents to make it easier to use AI agents.
  • docs: update docs for contributors by @fortuna in #515
  • feat: add GEMINI.md by @fortuna in #521

Other changes

• build: use go tool by @fortuna in #510
• feat(devtools): add instructions for running Android binaries by @fortuna in #511
• build: add Android CI by @fortuna in #512
• docs(x): add psiphon tag in mobileproxy builds by @ohnorobo in #502

Full Changelog: x/v0.0.6...x/v0.0.7