chore: add The Company Company environment config

[NathanFlurry]

Adds .company/environment.json so The Company Company can build and run this repo in cloud environments.

• install: native build deps (sccache, binutils, pkg-config, OpenSSL), Node 24 via NodeSource, pnpm via corepack, Rust stable with rustfmt + clippy, nightly with rust-src and the wasm32-wasip1 target for the -Z build-std software toolchain, pnpm install --frozen-lockfile, cargo fetch --locked
• prepare: fast idempotent reconcile, pnpm install --frozen-lockfile + cargo fetch --locked
• env: AGENTOS_SKIP_NATIVE_META_BUILD=1 (matches CI) and CARGO_NET_GIT_FETCH_WITH_CLI=true, plus non-interactive corepack

Verified by running the install command to exit 0 in a clean Ubuntu 24.04 sandbox.

[the-company-company]

Co · session: Set up cloud environment configs for 5 repos

• Auto-fix ; feedback on this pull request flows to the session and gets addressed
• Review ; Co reviews new pushes

_{@co <ask> hands Co a task · @co mute pauses · @co archive ends the session}

[railway-app]

🚅 Environment agentos-pr-1968 in rivet-frontend has no services deployed.

[the-company-company]

🔴 1 high-severity finding

_{Reviewed commit 91ba370.}

[the-company-company]

✅ No issues found

_{Reviewed commit d89875e.}