Add README, MIT license, and sponsor config

[StreamDemon]

Summary

Sets up the public-facing GitHub repo surface to make the project legible (and attractive) to visitors and potential sponsors in the AI space:

• README.md (new) — the AI-native pitch, spec-accurate code samples (actor counter, pipe-with-?, token-contract excerpt — all drawn from docs/examples/ and the prompt mirror, not hand-invented), the seven design principles, project status with the three bootstrap crates, the compiler roadmap from Compiler Roadmap #66 with milestone links, a docs map, contributing notes, and a sponsorship section.
• LICENSE (new) — MIT. Cargo.toml has declared license = "MIT" since the bootstrap landed, but the license file itself was missing; this closes that gap.
• .github/FUNDING.yml (new) — enables the GitHub Sponsors button (github: [StreamDemon]).
• AGENTS.md (1 line) — the commit-message rule still instructed agents to sign with Co-Authored-By: Claude ... trailers, contradicting the maintainer's no-AI-footers policy (2026-07-02). Synced.

Repo topics and description are being set directly via repo settings (not files) in the same effort: programming-language, rust, compiler, wasm, ethereum, solana, llm, ai-agents.

Spec Sections Affected

None — no language-behavior changes. README quotes existing spec/examples content verbatim or in trimmed form; the spec version cited is v0.5.14-draft, matching current main.

Build Targets Tested

N/A (docs/metadata only; no compiler-crate changes).

Test plan

• README code fences use the sploosh language tag and match docs/examples/hello-world.md, docs/examples/token-contract.md, and the §8 actor example shapes.
• All README relative links point at files that exist in-tree; milestone/issue links point at the live GitHub milestones (1–8) and Compiler Roadmap #66.
• Badge URLs reference the two real workflows (rust.yml, prompt-budget.yml).
• CI: prompt-budget and Rust workflows unaffected (no docs/spec-plans/ or crates/ changes).

---

Summary by cubic

Adds a clear README, MIT license, and GitHub Sponsors config to improve the repo’s landing page and legitimacy. Also aligns commit-message rules in AGENTS.md with the maintainer policy.

• New Features

  • Add README with pitch, spec-accurate samples, roadmap links, docs map, contributing, and sponsoring.
  • Add MIT LICENSE to match Cargo.toml.
  • Add .github/FUNDING.yml to enable the Sponsors button.

• Bug Fixes

  • Sync AGENTS.md commit-message rules: no co-authored-by or generator footers anywhere.
  • Fix README keyword count to 45 (36 reserved + 9 contextual) to match the spec and lexer.

^{Written for commit a976105. Summary will update on new commits.}

[cubic-dev-ai]

All reported issues were addressed across 4 files

Architecture diagram

sequenceDiagram
    participant C as Contributor
    participant GH as GitHub Repository
    participant D as README / Docs Hub
    participant A as AGENTS.md
    participant CI as CI Workflows
    participant SP as GitHub Sponsors

    Note over C,SP: Current-state public repo flow

    C->>GH: Open repository page
    GH->>D: Render README (badges, samples, roadmap)
    D-->>C: Show pitch, docs map, examples, MIT LICENSE
    C->>A: Read contribution conventions
    A-->>C: Enforce PR-only workflow, no AI footers
    C->>GH: Open PR / push branch
    GH->>CI: Trigger rust.yml and prompt-budget.yml
    CI->>D: Validate spec-example sync and prompt token budget
    CI-->>GH: Update workflow status badges
    C->>GH: Click Sponsors button
    GH->>SP: Resolve sponsor account from FUNDING.yml
    SP-->>C: Open GitHub Sponsors page

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[cubic-dev-ai]

0 issues found across 1 file (changes from recent commits).

Confidence score: 5/5

• Automated review surfaced no issues in the provided summaries.
• No files require special attention.

<sub>Auto-approved: Repo-facing documentation and metadata only: README, standard MIT license matching Cargo.toml, FUNDING.yml, and an AGENTS.md rule sync. No code, API, or behavior changes requiring human judgment.

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