fix(examples): runnable dart 04_files + java Example03Files; add java Example03Chunks#94
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… Example03Chunks V2-297 audit on dev2 (2026-05-18) found three gaps in the 5 SDKs with existing example scaffolding: * antd-dart/example/04_files.dart was silently passing despite hardcoded /path/to/file.txt placeholders — the example catches AntdError and exits 0, so the runner reported PASS while the daemon was returning 400. Rewrite to use Directory.systemTemp.createTemp, real bytes, byte-equal round-trip assertion, exit non-zero on mismatch. Drop the dir_upload step (separate daemon bug). * antd-java Example03Files.java had the same /path/to/file.txt stub pattern. Rewrite to use Files.createTempDirectory + Files.writeString + Files.readString round-trip assertion. Same pattern as V2-294 for antd-go and V2-299 for the other SDKs. * antd-java had no Example03Chunks — the runner adapter only dispatched connect/data/files/errors/private. Author Example03Chunks.java mirroring Example02PublicData's shape but using chunkPut/chunkGet, with a byte-equal round-trip assertion. Wire it into the java adapter in ant-dev/cmd_example.py. After these, csharp/dart/swift/java/kotlin all run green for the canonical 5 examples (connect, data, chunks, files, private) against a live devnet. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Cuts v0.8.0 atop v0.7.1. Substantial breaking-change roll-up of the put/get rename, the private-file PUT/GET gap close, and several minor surface cleanups -- bundled here so the v1.0 cut can ship stable on top. ## Breaking (antd daemon) - feat(antd)!: bind to 127.0.0.1 by default on REST and gRPC (#107). Previously bound 0.0.0.0; use --bind-rest / --bind-grpc to override. - chore: remove dead graph_entry surface from antd proto + 5 SDKs (#92). GraphService and its 4 RPCs are gone; REST mounts dropped. - chore: remove dir_upload_public / dir_download_public surface (#95). Use file_put_public on a directory path instead; the daemon recurses. - feat(antd)!: normalize put/get convention + close private-file PUT and GET gaps (#115). Method renames across proto + REST + SDKs: data_put_private -> data_put data_get_private -> data_get file_upload_public -> file_put_public file_download_public -> file_get_public New: file_put / file_get for the private file path (previously only the public variant existed). New typed results: DataPutResult, DataPutPublicResult, FilePutResult, FilePutPublicResult; PutResult is now annotated as chunk_put only. ## Additive - feat(antd): honor payment_mode on gRPC put/cost paths and REST cost endpoints (#114). Optional kwarg threaded through every put/cost signature; empty/omitted maps to "auto" so older clients keep working. - feat: external-signer public uploads + single-chunk prepare/finalize across 15 SDKs (#90). - docs+spec: openapi.yaml refreshed for the v1.0 surface, including POST /v1/chunks/prepare and /v1/chunks/finalize for single-chunk external-signer publish (#126). ## SDK fan-out (PaymentMode + put/get convention, all 15) #116 antd-go, #117 antd-py/ruby/elixir, #118 antd-rust, #119 antd-csharp, #120 antd-java, #121 antd-swift, #122 antd-dart, #123 antd-kotlin, #124 antd-cpp, #125 antd-js/php/zig/lua, #127 antd-mcp. ## SDK example + build fixes - fix(antd-go): make 03-files example self-contained and runnable (#91) - fix(examples): make 04-files runnable across cpp/rust/elixir/lua/php/ruby/zig (#93) - fix(examples): runnable dart 04_files + java Example03Files; add java Example03Chunks (#94) - feat: gRPC transport example for antd-py and antd-rust (#113) - feat(antd-py): 07_external_signer example + ant-dev dispatcher entry (#98) - feat(antd-js): 07-external-signer example + antd-py empty-payments fix (#99) - feat(rust/go): 07-external-signer examples (#100) - feat(antd-csharp): 07_external_signer example (#101) - feat(antd-java): 07_external_signer example (#102) - feat(antd-kotlin): 07_external_signer example (#103) - feat(antd-dart): 07_external_signer example (#104) - feat(antd-ruby): 07_external_signer example (#105) - feat(antd-php): 07_external_signer example (#106) - chore(antd-kotlin): drop stale GraphDescendant from local proto copy (#108) ## Docs / infra - docs: external-signer flow reference + ABI + python smoke test (#97) - docs: add SECURITY.md with threat model and disclosure policy (#109) - docs!: refresh per-SDK READMEs + llms-full.txt + openapi.yaml for v1.0 surface (#126) - ci: add Go lint + test + vuln scanning for antd-go (#112) - ci: extend antd-rust to sibling-repo parity (fmt + clippy + audit + doc) (#111) - ci: skip antd/openapi.yaml and llms-full.txt from triggering CI (#128) - chore(scripts): add full-stack + integration sweep helpers (#96) - fix(antd-rust): regenerate Cargo.lock to unbreak --locked CI (#110) Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Summary
Audit of csharp/dart/swift/java/kotlin against `ant dev example all` against a live devnet (2026-05-18) showed 23 of 25 cells green out of the box. This PR closes the 2 real gaps and the 1 silent fail-through:
dart/files: was passing in 2s with hardcoded `/path/to/file.txt` — the example caught `AntdError` and exited 0, so the runner reported PASS while the daemon was returning HTTP 400. Rewrite to use `Directory.systemTemp.createTemp`, real bytes, byte-equal round-trip assertion, and `exitCode = 1` on mismatch. Drop the dir_upload step (broken in the daemon, separate ticket).
java/files: `Example03Files.java` had the same `/path/to/file.txt` stub pattern, errored at `fileUploadPublic` with HTTP 400. Rewrite to use `Files.createTempDirectory` + `Files.writeString` + `Files.readString` round-trip assertion, mirroring the post-fix(antd-go): make 03-files example self-contained and runnable #91 antd-go pattern and fix(examples): make 04-files runnable across cpp/rust/elixir/lua/php/ruby/zig #93's antd-py reference.
java/chunks: didn't exist — the runner adapter only dispatched connect/data/files/errors/private, no chunks example was ever written. Author `Example03Chunks.java` mirroring `Example02PublicData`'s shape but using `chunkPut`/`chunkGet` with a byte-equal round-trip assertion. Wire `chunks` into the java adapter in `ant-dev/cmd_example.py`.
What changes
What does not change
Test plan
dev2 sweep with `ant dev example -l ` for every `(lang, name)` pair in {csharp, dart, swift, java, kotlin} × {connect, data, chunks, files, private}. 25/25 PASS. Per-language summary:
Reviewer: re-run the sweep on a fresh devnet to confirm.
Why now
v1.0 ship target this week or next. After this lands together with #91 (antd-go), #92 (graph removal), and #93 (cross-SDK files runnable), every shipping SDK has a green 5-example sweep — except for any per-SDK quirks that surface during the post-merge full sweep. That's the v1.0 gate.
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