refactor(scripts): use dfx --system-canisters instead of manual NNS setup

[aterga]

Summary

• Replace manual installation of system canisters (ICP ledger, ICP index, CMC, Internet Identity) with `dfx start --system-canisters`, which bootstraps them automatically via PocketIC
• Bump dfx from 0.25.0 to 0.30.2
• Remove ~110 lines of install/uninstall/setup functions from `orbit` script; add `setup_system_canisters_post()` that transfers ICP, configures CMC's authorized subnet list, and reinstalls the project's pinned Internet Identity version over the system-bootstrapped one so the e2e tests get the expected registration UI
• Upgrade icx-asset from 0.21.0 to 0.29.0 for compatibility with dfx 0.30.2's asset canister batch API
• Remove Python/cbor2/crc32 CI dependencies that were only needed for native replica CBOR parsing

Test plan

• CI `deployment-test` passes (PocketIC + `--system-canisters`)
• CI `deployment-test-replica` passes (was native replica, now also PocketIC since dfx 0.27.0 removed the native replica)
• CI `prod-deployment-test` passes
• CI `e2e-tests` passes
• Integration tests unaffected (separate PocketIC setup via `with_icp_features`)
• Verify `dfx ledger transfer --identity anonymous` successfully credits ICP to current user

🤖 Generated with Claude Code

[Copilot]

Pull request overview

Refactors the local dev/CI bootstrapping flow to rely on dfx start --system-canisters (PocketIC-managed system canisters) instead of manually installing NNS/system canisters, and updates docs/CI accordingly.

Changes:

• Switch local startup commands to dfx start --system-canisters in docs, scripts, and CI.
• Simplify the orbit --init flow by removing manual system-canister install logic and adding a small post-bootstrap helper (ICP transfer + CMC subnet authorization).
• Bump dfx version and refresh generated Candid TS types / tool versions.

Reviewed changes

Copilot reviewed 7 out of 9 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
orbit	Removes manual NNS/system-canister setup and adds setup_system_canisters_post to finalize PocketIC --system-canisters bootstrap.
dfx.json	Drops the cmc canister entry and bumps dfx to 0.30.2.
.github/workflows/tests.yaml	Updates CI to start with --system-canisters and removes Python/cbor2/crc32 steps.
README.md	Updates local dev instructions to use dfx start --system-canisters.
docs/src/content/docs/developers/getting-started.md	Updates the dfx start command to --system-canisters.
package.json	Updates e2e deploy script to start dfx with --system-canisters.
scripts/utils.sh	Bumps icx-asset install version.
apps/wallet/src/generated/**.did.d.ts	Regenerated TS declarations with expanded JSDoc/comments.

Comments suppressed due to low confidence (1)

docs/src/content/docs/developers/getting-started.md:69

• Step 4 says "Start the Internet Computer replica in the background", but the command shown does not use --background, and --system-canisters starts PocketIC rather than the native replica. Also, the subsequent dfx deploy will attempt to deploy all canisters in dfx.json (including icp_ledger/icp_index/internet_identity), which is likely not the intended local-dev flow now that system canisters are bootstrapped automatically. Consider updating this step to mention PocketIC and to use dfx start --background ... plus ./orbit --init (as in the root README) instead of dfx deploy.

## Step 4: Start the Local Development Server

1. Start the Internet Computer replica in the background:

   ```bash
   dfx start --clean --system-canisters --host 127.0.0.1:4943

2. Deploy the canisters to the local replica:

   dfx deploy

</details>



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[aterga]

LGTM