loco: retract the pair-specific epistemic band; drop ogar-epistemic (September recovery)

[AdaWorldAPI]

What this PR does

Removal-only cleanup, one commit (e6d5e35 on b2cad4f = main), paired with the lance-graph semantic-family recovery (AdaWorldAPI/lance-graph#1134, ruling E-SIX-SEMANTIC-FAMILIES-MUST-NOT-IMPERSONATE-EACH-OTHER-1).

The register that #296's loco calls operated on, and that #297's 24-axis basis named, aliased three distinct semantic families — episodic/Markov loci, qualia magnitude, and population-derived semantic geometry — into one type. Those bindings depended on that interpretation and go with it.

Removed

• FnIndex::{BELNAP_JOIN, INFO_GAIN, SIGMA_TENSION, ACCUMULATE, STANCE_ENTROPY} (0x87..0x8B), their stack_arity and name rows in ogar-loco/src/vocabulary.rs; named census re-pinned 101 → 96 with the history kept in the comment. The slots return to reserved core (reserve, don't reclaim).
• crates/ogar-epistemic/ (the fixed 24-axis basis, concept id 0x0334) and its workspace member line. Cargo.lock never listed it, so it is unchanged.
• The band header comment in ogar-loco/src/lib.rs, which paraphrased an operator directive and named the deleted lance-graph module as semantic owner.

Retained, unchanged

• FnIndex::TERNLOG (0x86): a generic 3-input mask combinator whose value byte is the truth table, independently justified by ndarray's W1a-docs: OGAR AST contract — the typed surface the ractor codegen lands on #9 ternlog. Its doc now says no named table set is canonical.
• BasinCodebook (loco: the shared basin codebook — one FnIndex for a whole palette #295) and everything else in ogar-loco; ogar-vocab is untouched (0x0334 was never minted there).

Ledger

[D-EPISTEMIC-BAND-RETRACTED] appended to docs/DISCOVERY-MAP.md; #296/#297 entries stand as history, regraded rather than rewritten.

What this PR does NOT do

• No replacement population-basin representation, vocabulary, or palette.
• No new tenant, ClassView, or classid mint.
• No canonical 24-axis basis.
• No EMPTY/−7..+7 nibble implementation.
• No change to Qualia, Cam96/PairPalette, Fisher/Helix/BGZ, palette256, trajectory structures, the causal graph, or the epistemic graph.
• No philosophical Style/Recipe work.
• The parked pre-ban stash on the lance-graph side was NOT reapplied.

Verification

• cargo test -p ogar-loco: 55 passed.
• cargo clippy -p ogar-loco --all-targets -- -D warnings: clean. cargo fmt -p ogar-loco --check: clean.
• cargo metadata --no-deps: workspace resolves with 35 members, ogar-epistemic absent.
• The committed tree is byte-identical to the tested tree: git diff HEAD was empty immediately after the commit; no edit was made between the test runs and the commit.

Merge order is independent of the lance-graph PR: nothing on the lance-graph side references the retracted calls or the removed crate any more.

🤖 Generated with Claude Code

https://claude.ai/code/session_01PFnYKqw6d7TTiB9cT8eFdK

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Generated by Claude Code

Summary by CodeRabbit

• Breaking Changes

  • Removed the epistemic basis package and its associated catalogue, lookups, rendering support, and tests.
  • Removed named operations for BELNAP_JOIN, INFO_GAIN, SIGMA_TENSION, ACCUMULATE, and STANCE_ENTROPY.
  • Reserved operation slots 0x87–0x8B; generic TERNLOG remains available at 0x86.
  • Updated the operation census from 101 to 96 entries.

• Documentation

  • Updated discovery documentation to reflect the retracted epistemic band and reserved slots.

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• crates/ogar-loco/src/lib.rs
• docs/DISCOVERY-MAP.md

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• Cargo.toml
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• crates/ogar-epistemic/src/lib.rs
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• crates/ogar-loco/src/vocabulary.rs
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📝 Walkthrough

Walkthrough

The PR removes the ogar-epistemic crate and its workspace membership. It removes five epistemic operations from ogar-loco, retains generic TERNLOG, reserves slots 0x87..0x8B, updates the operation census, and records the retraction.

Changes

Epistemic retraction

Layer / File(s)	Summary
Shared-core operation retraction crates/ogar-loco/src/lib.rs, crates/ogar-loco/src/vocabulary.rs	TERNLOG remains at 0x86. The five epistemic operations are removed. Slots 0x87..0x8B are reserved. The named-operation census changes from 101 to 96.
Workspace cleanup and discovery record Cargo.toml, crates/ogar-epistemic/Cargo.toml, crates/ogar-epistemic/src/lib.rs, docs/DISCOVERY-MAP.md	The epistemic crate is removed from the workspace and deleted. The discovery map records the retraction and retained reservations.

Estimated code review effort: 3 (Moderate) | ~20 minutes

Merge Risk: ⚪ Minimal · up to e6d5e

This is a localized removal-only cleanup that retracts obsolete vocabulary and deletes an unused workspace crate without introducing replacement runtime behavior; no actionable merge-blocking risk remains after normal checks and review.

Suggested reviewers: claude

Poem

A rabbit hops through slots made clear
TERNLOG stays, the rest disappear
The epistemic crate leaves the nest
Reserved bands now mark the rest
The map records each careful change

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly summarizes the main changes: it retracts the pair-specific epistemic band and removes the ogar-epistemic crate.
Docstring Coverage	✅ Passed	Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 3 functions across 2 files. (1 skipped: 1 …
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

Full details: Docstring Coverage

Explanation

Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 3 functions across 2 files. (1 skipped: 1 unsupported.)

✨ Finishing Touches

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