fix(ingest): coerce YAML date/int tags to str in get_tags_from_frontmatter

[ruoxi001]

Summary

Fixes AttributeError: 'datetime.date' object has no attribute 'lower' when wiki frontmatter contains ISO date tags like tags: [foo, 2026-06-12].

Fix

Coerce every non-None tag entry through str(...) in get_tags_from_frontmatter() before using .lower(). Also handles int, float, and bool scalars for safety.

Repro

tags: [important, 2026-06-12]
---
# any content

-> worker raises AttributeError

After

Same frontmatter -> tags = ["important", "2026-06-12"]

[spongerius]

Code review

Found 2 issues:

1. PR fix(ingest): coerce YAML date/int tags to str in get_tags_from_frontmatter #31 is a byte-for-byte duplicate of already-merged PR fix: expose embedding backend env vars in docker-compose and setup.sh #30 (fix: expose embedding backend env vars in docker-compose and setup.sh #30). The same embedding environment variables were already added to docker-compose.yml and setup.sh in commit e03db1f.

memory-os/docker/docker-compose.yml

Lines 70 to 72 in 86816e4

	EMBEDDING_API_BASE: ${EMBEDDING_API_BASE:-https://openrouter.ai/api/v1}
	EMBEDDING_MODEL: ${EMBEDDING_MODEL:-qwen/qwen3-embedding-8b}
	EMBEDDING_API_KEY: ${EMBEDDING_API_KEY:-}

memory-os/setup.sh

Lines 331 to 333 in 86816e4

	add_env "EMBEDDING_API_BASE" "https://openrouter.ai/api/v1"
	add_env "EMBEDDING_MODEL" "qwen/qwen3-embedding-8b"
	add_env "EMBEDDING_API_KEY" ""

2. PR title and description claim to fix get_tags_from_frontmatter() to coerce YAML date/int tags to strings, but the actual diff only adds embedding environment variables (EMBEDDING_API_BASE, EMBEDDING_MODEL, EMBEDDING_API_KEY) to docker-compose.yml and setup.sh. No ingestion code is modified.

memory-os/docker/docker-compose.yml

Lines 70 to 72 in 86816e4

	EMBEDDING_API_BASE: ${EMBEDDING_API_BASE:-https://openrouter.ai/api/v1}
	EMBEDDING_MODEL: ${EMBEDDING_MODEL:-qwen/qwen3-embedding-8b}
	EMBEDDING_API_KEY: ${EMBEDDING_API_KEY:-}

memory-os/setup.sh

Lines 331 to 333 in 86816e4

	add_env "EMBEDDING_API_BASE" "https://openrouter.ai/api/v1"
	add_env "EMBEDDING_MODEL" "qwen/qwen3-embedding-8b"
	add_env "EMBEDDING_API_KEY" ""

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