v0.0.5

Added

• google provider — Gemini API support via bo config --provider google --model gemini-2.5-flash. Includes gemini-2.5-flash-lite, gemini-2.5-flash, and gemini-2.5-pro models with 1M token context windows. Auth via GEMINI_API_KEY env var or google_api_key in ~/.bo/auth.json.
• bo query now retrieves compiled branches in addition to raw leaves — the LLM sees synthesized concept pages alongside source documents and may cite either kind.
• Compile degenerate-result warning: when a Full compile on a large corpus produces a suspiciously thin branch set, bo warns the user without blocking the output. Retry with --all or switch models if the warning appears consistently.
• Architecture documentation: docs/architecture.md (design decisions) and src/AGENTS.md (code rules for contributors / coding agents).
• deepseek-v4-pro model entry (1M context, stronger than v4-flash).

Changed

• Fresh trees auto-run Full compile mode. Incremental mode now only activates when branches already exist, fixing a class of validation errors where the LLM was asked to update non-existent branches.
• bo seed no longer silently defaults to gpt-4.1-mini when no model is given. The model field is required — either via the --model flag or the interactive prompt. bo config without a model now fails with a clear error instead of silently falling back.
• Compile validation hardened: ambiguous leaf title references (two leaves sharing a title) are now rejected rather than silently resolving to the wrong leaf. Leaf slugs are included in the full-compile prompt so models see the canonical identifier.
• Schema generation uses schemars-derived inline schemas (no $ref/definitions/$schema`) — fixes a Google provider rejection and keeps schemas portable across all three providers.
• Type-level schema enforcement: the LlmProvider contract now requires normalized schemas at compile time, not runtime.
• Compile output (--json) no longer reports a redundant context_mode field (it was always 1:1 with mode).
• Three different LLM runtime patterns unified behind a shared OnceLock-backed runtime. All CLI modules share one long-lived async executor rather than building fresh ones per call.

Fixed

• Branch .md frontmatter now correctly drops deleted leaf filenames from the leaves: list when a leaf is removed. Previously the manifest was updated but the branch file on disk was stale.
• Google provider compile returning HTTP 400 on schema fields injected by schemars — fixed by inlining subschemas.
• Duplicate-URL detection on single-URL bo collect — a regression from an internal refactor that dropped the pre-fetch duplicate check.
• Five distinct compile failure modes are now caught by the validation gate and refuse to write, rather than silently producing a corrupted or degraded tree.

Architecture (non-user-facing)

• Compile pipeline refactored: mode-delta logic split into focused functions, duplicated preflight collapsed, CompileContextMode redundant type removed. God-function eliminated; pipeline reads as a traceable progression.
• Retrieval scoring deduplicated: leaf and branch scoring share a single parameterized function.
• Atomic manifest-commit sequence extracted from duplicate collect/compile sites into a shared engine::pending helper.
• pub(super) visibility discipline enforced throughout compile and query modules — no internal plumbing leaks across commands.