init: repo boot with ground rules, LICENSE, editorconfig, directory structure

Establishes the mcpt-marketing repo with deterministic marketing data rules:
- Stable IDs (never renamed, deprecate instead)
- Claim status enforcement (proven requires evidence)
- Hash-addressed evidence with provenance
- Canonical lockfile checked by CI
- Deterministic JSON serialization

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: mcp-tool-shop

.editorconfig

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+root = true
+
+[*]
+indent_style = space
+indent_size = 2
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[*.md]
+trim_trailing_whitespace = false

.gitattributes

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+# Normalize line endings
+* text=auto eol=lf
+
+# Binary assets
+*.png binary
+*.jpg binary
+*.gif binary
+*.mp4 binary

.gitignore

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+node_modules/
+dist/
+.DS_Store
+Thumbs.db
+*.swp
+*.swo

LICENSE

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+MIT License
+
+Copyright (c) 2026 mcp-tool-shop
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# mcpt-marketing
+
+Deterministic marketing data layer for MCP Tool Shop. Schema-validated claims, hash-addressed evidence, and reproducible marketing builds.
+
+Internally, the schema and IR layer is called **MarketIR** — a structured intermediate representation of tools, audiences, claims, evidence, messages, and campaigns.
+
+## Ground Rules
+
+These rules are non-negotiable. CI enforces them.
+
+### IDs are stable and permanent
+
+- IDs follow a namespace pattern: `tool.<slug>`, `aud.<name>`, `claim.<tool>.<slug>`, `ev.<tool>.<slug>.v<n>`, `msg.<tool>.<slug>`, `camp.<tool>.<slug>`
+- IDs are **never renamed**. Deprecate instead (`status: "deprecated"`)
+- All IDs must be unique across the entire graph
+
+### Claims must declare status
+
+Every claim has a `status`:
+
+| Status | Meaning |
+|--------|---------|
+| `proven` | Backed by at least one `evidenceRef` |
+| `aspirational` | Believed true, evidence not yet captured |
+| `deprecated` | No longer valid — kept for audit trail |
+
+**Proven claims require evidence.** If a claim is `proven`, it must reference at least one entry in the evidence manifest. CI rejects proven claims with zero evidence.
+
+### Evidence is hash-addressed
+
+Every evidence artifact includes:
+
+- `sha256` hash of the file content
+- `bytes` size
+- `provenance` object: who/what generated it, from which commit, and any notes
+
+This makes evidence tamper-evident and reproducible.
+
+### The lockfile is canonical
+
+`marketing/manifests/marketing.lock.json` pins every included file by hash. CI regenerates the lockfile and fails if it differs from what's committed. This guarantees reproducible "marketing releases."
+
+### Messages must trace to claims
+
+Every message should be derivable from claims. If a message asserts something not represented as a claim, that's a schema violation enforced by validation.
+
+### Deterministic serialization
+
+All JSON files use:
+
+- Stable key ordering (sorted)
+- Stable array ordering (by ID)
+- Trailing newline
+
+This prevents "same data, different diff" noise.
+
+## Repo Structure
+
+```
+marketing/
+  schema/             # JSON Schema (2020-12) definitions
+  data/
+    tools/            # One file per tool
+    campaigns/        # One file per campaign
+    audiences/        # One file per audience
+  evidence/           # Evidence artifacts (screenshots, reports)
+  manifests/          # evidence.manifest.json + marketing.lock.json
+  scripts/            # validate, hash, gen-lock
+```
+
+## Usage
+
+```bash
+npm install
+node marketing/scripts/validate.mjs       # Schema + invariant checks
+node marketing/scripts/gen-lock.mjs        # Regenerate lockfile
+node marketing/scripts/gen-lock.mjs --check  # Fail if lock differs (CI mode)
+```
+
+## License
+
+MIT