bash and browser mediums silently drop gates

[deepfates]

bash and browser mediums accept gates at init() but never make them callable from inside the medium.

• bash.ts: stores gates in projectedGates, only intercepts submit_answer via regex. All other gates are ignored at execution time — they only appear in capabilityDocs() text.
• browser.ts: same pattern. Gates stored but only submit_answer is intercepted.

Gates are supposed to be host functions bound INTO the circle. These mediums accept them and silently do nothing with them.

Possible approaches:

• bash: intercept gate-named commands before exec, or write gate shims as executables on PATH
• browser: similar interception in the eval scope

js() and jsBrowser() handle gate injection correctly via sandbox.registerAsyncFunction().