mcp-server: expose Flight Deck retrieval and note tools via MCP

[yashomdighe]

Add a stdio MCP adapter that delegates retrieval and note CRUD to kb-server, defaults reads to view=current, and forces writes through source=api.

Topic: mcp-adapter
Relative: retrieval-layer

[yashomdighe]

Reviews in this chain:
└#9 kb-server: add deterministic context retrieval APIs
　└#10 mcp-server: expose Flight Deck retrieval and note tools via MCP

[yashomdighe]

#	head	base	diff	date	summary
0	91a5a006	7cbd8596	diff	Mar 12 8:37 AM	21 files changed, 598 insertions(+), 2 deletions(-)
1	2b3c2461	eda22d51	diff	Mar 12 8:47 AM	0 files changed
2	7ab65dc4	de3092e4	diff	Mar 12 20:58 PM	2 files changed, 30 insertions(+), 2 deletions(-)
3	cbb1407c	de3092e4	diff	Mar 12 21:20 PM	1 file changed, 37 insertions(+), 10 deletions(-)
4	a7c493d8	426737a7	diff	Mar 12 21:40 PM	0 files changed