chore: bootstrap OLP v0.1 — multi-provider LLM proxy

Initial release. OLP (Open LLM Proxy) is a personal- and family-scale
multi-provider LLM proxy that supersedes OCP (Open Claude Proxy).

Trigger: Anthropic's 2026-05-14 announcement (effective 2026-06-15)
moves `claude -p` / Agent SDK / third-party agent traffic out of the
Pro/Max subscription pool into a separate fixed monthly Agent SDK
Credit pool. OCP's foundational assumption ("subscription = unlimited
within rate limits") breaks for Anthropic on that date. Spreading
risk across multiple providers is the structural response.

Phase 0 lands:
- ALIGNMENT.md (constitution: 5 Rules, 3 Authorities, 4-tier Risk
  Framework, 8-provider inventory)
- AGENTS.md (multi-tool agent guidelines; inherits cc-rules)
- CLAUDE.md (Claude-Code session instructions + release_kit overlay)
- README.md (phase-aware skeleton)
- docs/adr/0001-0006 (Founding ADRs: project founding / plugin
  architecture / IR design / fallback engine / cross-provider cache /
  provider inclusion + risk-tier framework)
- .github/PULL_REQUEST_TEMPLATE.md (8-radio Change Type + per-type
  Authority Evidence + Iron Rule 10 reviewer checklist)
- .github/workflows/alignment.yml (blacklist + Antigravity exclusion
  enforcement + models-registry validator + commit-citation soft check)
- .github/workflows/release.yml (auto-release on tag with version
  match check per Iron Rule 5)
- .github/workflows/test.yml (Node 20/24 matrix, bootstrap-tolerant)
- package.json, .gitignore, LICENSE (MIT), CHANGELOG.md

Provider inventory at bootstrap:
  Tier D (default-enabled):       anthropic, openai, mistral
  Tier C (opt-in):                grok, kimi
  Tier B (opt-in + consent):      minimax, glm, qwen
  Tier A (permanently excluded):  google-antigravity

Supersedes OCP ADR 0005 (No Multi-Provider) per OLP ADR 0001. OCP
will enter maintenance mode when OLP v0.1 ships per Phase 7 plan.

Iron Rule 10 gate: fresh-context independent opus reviewer audited
all 15 governance files against OLP v0.1 spec + OCP precedent.
Verdict: APPROVE_WITH_MINOR. Two minor findings folded in:
  1. alignment.yml heredoc EOF moved to column 0 (was indented;
     bash parse failed silently on real blacklist hits, printing
     a cryptic "syntax error" instead of the structured ALIGNMENT
     GUARDRAIL FAILURE banner).
  2. AGENTS.md clarified that the SPOT discipline for
     models-registry.json will be codified by a Phase-1 ADR (OLP
     ADR 0003 is currently the IR design, not a SPOT codification;
     OCP's ADR 0003 is the precedent but OLP's registry shape
     differs and warrants its own ADR).

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

docs/adr/README.md

@@ -0,0 +1,37 @@
+# Architecture Decision Records — OLP
+
+This directory holds the OLP Architecture Decision Records (ADRs) — short documents that capture the **why** behind structural choices.
+
+Read these before proposing governance, plug-in contract, IR, fallback, cache, or provider-inclusion changes.
+
+## Numbering
+
+ADRs in OLP start at `0001` (the project's founding decision). OLP did not inherit the `0001` placeholder convention OCP used; the project starts on a fresh numbering line.
+
+New ADRs increment from the highest existing number. Filenames are `NNNN-<short-slug>.md`.
+
+## Index
+
+| ADR | Title | What it covers |
+|---|---|---|
+| [0001](0001-project-founding.md) | Project Founding | Why OLP exists (the 2026-06-15 Anthropic billing-split trigger), mission + non-mission boundaries, explicit supersession of OCP ADR 0005 "No Multi-Provider". |
+| [0002](0002-plugin-architecture.md) | Plugin Architecture for Providers | The `lib/providers/<name>.mjs` plug-in model, the Provider contract (name / models / auth / spawn / estimateCost / quotaStatus / healthCheck / hints), static in-tree registry, why-not full external plugin discovery. |
+| [0003](0003-intermediate-representation.md) | Intermediate Representation (IR) Design | The OLP-internal canonical request/response shape between the OpenAI-compat entry surface and each provider plugin. v1.0 IR fields, IR-vs-OpenAI-vs-native-provider three-shape model, IR is not exposed externally. |
+| [0004](0004-fallback-engine.md) | Fallback Engine Semantics & Safety | Trigger taxonomy (Hard / Soft / Deterministic-deferred / Cost-aware-deferred), idempotent-failure safety (first-chunk rule), chain advancement one-at-a-time, observability headers. |
+| [0005](0005-cache-cross-provider.md) | Cache Layer Cross-Provider Design | Cache key composition over `(provider, model, messages, …)`, per-model isolation, D1+D2+D3+D4 port from OCP v3.13.0, cross-provider fallback cache behaviour (correct miss). |
+| [0006](0006-provider-inclusion.md) | Provider Inclusion / Exclusion + Risk-Tier Framework | The 4-tier classification (A excluded / B explicit consent / C opt-in / D default-enabled), current v0.1 inventory, Antigravity exclusion rationale (named prohibition + no cost advantage + reinstatement friction), consent UX, future provider addition procedure. |
+
+## When to write a new ADR
+
+Open one whenever:
+
+- A structural rule is being added or changed (e.g., new IR field, new trigger type, new cache-key composition).
+- A new provider plugin is being proposed (per ADR 0002 + ADR 0006 — ADR is a hard prerequisite for plugin merge).
+- A decision encodes a lesson from an external event (provider policy change, drift incident).
+- A future contributor reading the code alone could plausibly undo or re-litigate the choice.
+
+Skip ADRs for routine implementation choices (algorithm pick, naming) — those belong in commit messages.
+
+## Format
+
+Keep ADRs short — Context / Decision / Consequences / Alternatives is the standard skeleton. Cite incidents, PRs, or commits where useful. Length per ADR ~150–250 lines; longer than that, split.