chore(vetkeys): split basic_ibe into self-contained motoko + rust examples

[marc0olo]

Summary

Splits the vetkeys basic_ibe example into two self-contained examples — one per language — matching the basic_vetkd layout, and duplicates the frontend so each is independent.

Previously basic_ibe lived only under rust/vetkeys/basic_ibe/ with a shared frontend/ symlinked into motoko/ and rust/ subdirs, and a gen_bindings.sh that always generated bindings from the Rust backend. Now:

motoko/vetkeys/basic_ibe/   backend/app.mo + own frontend/ + icp.yaml + mops.toml
rust/vetkeys/basic_ibe/     backend/ (flattened) + own frontend/ + icp.yaml + Cargo.toml

Frontend

• Duplicated per language. Bindings are generated by the @icp-sdk/bindgen Vite plugin from the committed backend/backend.did (replacing the shared scripts/gen_bindings.sh). main.ts imports from ./bindings/backend.
• Slimmed to the established shape: dropped eslint/prettier/gen_bindings.sh and the BACKEND-env dev logic; package.json reduced to name: "frontend".
• Added a root workspace package.json to each example so npm run dev / npm run build run from the example root (matching ic-pos, daily_planner, …).

Backend

• Motoko: idiomatic camelCase public interface (getMyMessages, .encryptedMessage, …). The vetKD management-canister interface is kept snake_case (vetkd_public_key, key_id, …) since it's the fixed system API. moc 1.11.0 + --default-persistent-actors (the now-redundant persistent keyword removed). Dropped unused sha2 dep. Committed backend/backend.did.
• Rust: unchanged (snake_case), just relocated into the flattened layout.

Since the frontends are now separate, the Motoko frontend uses the camelCase interface and the Rust frontend keeps snake_case — each matches its own backend.

Docs & CI

• README split per language (cross-linked); prerequisites link each tool with its install command inline.
• vetkeys-basic-ibe.yml: motoko + rust jobs target the new paths, watch both motoko/** and rust/**, and run test.sh.

CODEOWNERS

Unchanged — /motoko/vetkeys/ and /rust/vetkeys/ both already map to @dfinity/core-protocol, so both examples keep that owner.

Verification (local, icp 1.x)

• Motoko: mops generate candid, frontend build + tsc --noEmit clean, icp deploy, test.sh PASS, and state survives an upgrade (sent a message → redeployed as upgrade → message still present, confirming persistence with the flag).
• Rust: cargo/wasm build + icp deploy, test.sh PASS.
• Both frontends build and serve (HTTP 200).

Part of a series — each vetkeys example that currently shares a frontend under rust/vetkeys/ will get its own split PR (basic_bls_signing, encrypted_notes_app_vetkd, password_manager, password_manager_with_metadata).

🤖 Generated with Claude Code

[Copilot]

Pull request overview

Splits the vetkeys/basic_ibe example into two self-contained examples (Motoko + Rust), each with its own frontend and project config, and updates CI accordingly to build/deploy/test both language variants independently.

Changes:

• Introduces standalone Motoko example at motoko/vetkeys/basic_ibe (backend, frontend, icp.yaml, mops.toml, docs, tests).
• Refactors Rust example at rust/vetkeys/basic_ibe into the flattened layout with its own frontend/bindgen flow, docs, and tests.
• Updates .github/workflows/vetkeys-basic-ibe.yml to run Motoko + Rust deploy-and-test jobs against the new paths.

Reviewed changes

Copilot reviewed 30 out of 40 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
.github/workflows/vetkeys-basic-ibe.yml	Runs deploy + test.sh for both Motoko and Rust example directories and watches both paths.
motoko/vetkeys/basic_ibe/README.md	Adds Motoko-specific README and cross-link to Rust variant.
motoko/vetkeys/basic_ibe/icp.yaml	Defines backend + frontend canisters and frontend build steps for Motoko example.
motoko/vetkeys/basic_ibe/mops.toml	Pins Motoko toolchain/settings and declares backend entry + candid path.
motoko/vetkeys/basic_ibe/package.json	Adds per-example npm workspace root for running frontend scripts from the example root.
motoko/vetkeys/basic_ibe/test.sh	Adds basic CLI tests for Motoko backend endpoints.
motoko/vetkeys/basic_ibe/backend/app.mo	Motoko backend implementation with camelCase public API and vetKD system API types.
motoko/vetkeys/basic_ibe/backend/backend.did	Committed Motoko Candid interface used for frontend bindgen.
motoko/vetkeys/basic_ibe/frontend/index.html	Adds Motoko frontend entry HTML for Vite build.
motoko/vetkeys/basic_ibe/frontend/package.json	Frontend deps/scripts including @icp-sdk/bindgen plugin usage.
motoko/vetkeys/basic_ibe/frontend/tsconfig.json	TypeScript config for the Motoko frontend.
motoko/vetkeys/basic_ibe/frontend/vite.config.ts	Vite config generating bindings from backend/backend.did and local dev cookie/proxy wiring.
motoko/vetkeys/basic_ibe/frontend/.gitignore	Ignores dist/, node_modules/, and generated bindings output.
motoko/vetkeys/basic_ibe/frontend/public/.ic-assets.json5	Sets hardened asset canister headers/CSP for the Motoko frontend.
motoko/vetkeys/basic_ibe/frontend/public/vite.svg	Adds frontend favicon asset.
motoko/vetkeys/basic_ibe/frontend/src/main.ts	Motoko frontend logic using generated bindings and II auth.
motoko/vetkeys/basic_ibe/frontend/src/style.css	Frontend styling for the Motoko UI.
motoko/vetkeys/basic_ibe/frontend/src/vite-env.d.ts	Vite TS type reference.
rust/vetkeys/basic_ibe/README.md	Updates Rust README to match the new self-contained layout and bindgen flow.
rust/vetkeys/basic_ibe/icp.yaml	Renames canisters to backend/frontend, points to frontend/dist, and updates build commands.
rust/vetkeys/basic_ibe/package.json	Adds per-example npm workspace root for the Rust example.
rust/vetkeys/basic_ibe/test.sh	Adds basic CLI tests for Rust backend endpoints.
rust/vetkeys/basic_ibe/Cargo.toml	Adds a workspace root pointing at backend/.
rust/vetkeys/basic_ibe/rust-toolchain.toml	Ensures wasm32 target is configured for the example toolchain.
rust/vetkeys/basic_ibe/backend/Cargo.toml	Rust backend crate config + dependencies for the IBE canister.
rust/vetkeys/basic_ibe/backend/Makefile	Build + candid extraction helper targets for the Rust backend.
rust/vetkeys/basic_ibe/backend/backend.did	Committed Rust Candid interface used for frontend bindgen.
rust/vetkeys/basic_ibe/backend/src/lib.rs	Rust backend canister code (stable inboxes, vetKD integration, public API).
rust/vetkeys/basic_ibe/backend/src/types.rs	Shared Rust types and stable-structure serialization helpers.
rust/vetkeys/basic_ibe/frontend/.gitignore	Ignores dist/, node_modules/, and generated bindings output.
rust/vetkeys/basic_ibe/frontend/package.json	Slimmed frontend deps/scripts and adds bindgen plugin dependency.
rust/vetkeys/basic_ibe/frontend/vite.config.ts	Rust frontend Vite config generating bindings from backend/backend.did.
rust/vetkeys/basic_ibe/frontend/src/main.ts	Updates Rust frontend to import from generated bindings and use backend canister env key.
rust/vetkeys/basic_ibe/frontend/scripts/gen_bindings.sh	Removes legacy manual bindings generation script.
rust/vetkeys/basic_ibe/frontend/eslint.config.mjs	Removes legacy eslint config.
rust/vetkeys/basic_ibe/frontend/.prettierrc	Removes legacy prettier config.
rust/vetkeys/basic_ibe/motoko/mops.toml	Removes the old shared Motoko config under the Rust example tree.

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