Foundation fixes: sum (core+symbolic), string-keyed dicts, recursion/enabled/changes/partial-dict errors, fmt safety, soundness oracle - #93

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danwt/claude/foundation-fixes

Commits on Jun 26, 2026

claude: feat(lang): add sum() builtin over collections
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bfe37fd
claude: fix(types): widen subrange into containing range in unify
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ddd448e
claude: fix(ir): reject recursive functions instead of overflowing the stack
danwt
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7aa30fe
claude: fix(types): reject enabled()/changes() instead of silent wrong value
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d6d3510
claude: fix(ir): don't flag nested non-recursive calls as recursion
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daae594
claude: feat(cli): qualify OK verdict when liveness properties are ignored
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e587185
claude: fix(fmt): never delete comments; leave commented files unchanged
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415715e
claude: docs(lang): note parenthesizing membership `in` in let value position
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c03c5f5
claude: feat(symbolic): encode sum() over dicts, sets, and comprehensions
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a11f4ef
claude: fix(mc): reject partial dict init instead of panicking
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1d0032e
claude: feat(lang): support string-keyed dicts under BFS
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4e504b8
claude: test(soundness): add cross-tool oracle vs TLC
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1793a92
claude: chore: remove TLC soundness oracle from public repo
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2731a74