docs: record wheelofnames implementation

docs/journals/260703-0408-wheelofnames-command.md

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+# Wheelofnames Command Journal
+
+## Context
+
+Executed plan `plans/260703-0404-wheelofnames-misc-command/plan.md`.
+
+## What Changed
+
+- Added public `/wheelofnames` command to `misc`.
+- Command parses comma-separated options, trims whitespace, ignores empty entries, and returns one random valid option.
+- Updated command registration tests and handler tests.
+- Updated `telegram-commands.json` and README command list.
+- Synced plan phases to completed.
+
+## Decisions
+
+- Plain text reply only; no HTML parse mode needed.
+- Non-cryptographic randomness acceptable for casual choice selection.
+- Duplicate options preserved, allowing intentional weighting.
+- No stats migration needed because command is additive.
+
+## Validation
+
+- `go test ./internal/modules/misc`
+- `go test ./cmd/server ./internal/modules/misc`
+- `go test ./...`
+- `go vet ./...`
+
+## Unresolved Questions
+
+None.